Prof. Dr. Roser Valenti
Publications
in 2024
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Dispersion kinks from electronic correlations in an unconventional iron-based superconductor
Ming-Hua Chang, Steffen Backes, Donghui Lu, Nicolas Gauthier, Makoto Hashimoto, Guan-Yu Chen, Hai-Hu Wen, Sung-Kwan Mo, Roser Valenti, Heike Pfau
Nature Comm. 15, 9958 (2024) [arXiv:2410.23044].
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Stability of algebraic spin liquids coupled to quantum phonons
F. Ferrari, J. Willsher, U. F. P. Seifert, R. Valenti, J. Knolle
[arXiv:2410.16376].
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Multi-orbital two-particle self-consistent approach -- strengths and limitations
Jonas B. Profe, Jiawei Yan, Karim Zantout, Philipp Werner, Roser Valenti
[arXiv:2410.00962].
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Altermagnetism on the Shastry-Sutherland lattice
Francesco Ferrari, Roser Valenti
Phys. Rev. B (accepted, Editor's choice)[arXiv:2408.00841].
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Why Scanning Tunneling Microscopy on Sr2RuO4 sometimes doesn't see the superconducting gap
Adrian Valadkhani, Jonas B. Profe, Andreas Kreisel, P. J. Hirschfeld, Roser Valentí
npj Quantum Materials 9, 78 (2024) [arXiv:2405.13106].
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Dynamical correlations and order in magic-angle twisted bilayer graphene
Gautam Rai, Lorenzo Crippa, Dumitru Călugăru, Haoyu Hu, Luca de' Medici, Antoine Georges, B. Andrei Bernevig, Roser Valentí, Giorgio Sangiovanni, Tim Wehling
Phys. Rev. X 14, 031045 (2024) [arXiv:2309.08529].
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Anisotropy of the zigzag order in the Kitaev honeycomb magnet α-RuBr3
John S. Pearce, David A. S. Kaib, Zeyu Ma, Danrui Ni, R. J. Cava, Roser Valenti, Radu Coldea, Amalia I. Coldea
[arXiv:2407.15658].
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Anisotropic magnetic interactions in a candidate Kitaev spin liquid close to a metal-insulator transition
Zeyu Ma, Danrui Ni, David A. S. Kaib, Kylie MacFarquharson, John S. Pearce, Robert J. Cava, Roser Valenti, Radu Coldea, Amalia I. Coldea
Comm. Phys. (accepted) (2024) [arXiv:2407.15657].
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Spin-Phonon Coupling in Transition Metal Insulators II: Spin-Orbital Moments, Chiral Phonons and Application to α-RuCl3
Ramesh Dhakal, David A. S. Kaib, Sananda Biswas, Roser Valenti, Stephen M. Winter
[arXiv:2407.00660].
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Understanding the microscopic origin of the magnetic interactions in CoNb2O6
Amanda A. Konieczna, David A. S. Kaib, Stephen M. Winter, Roser Valentí
[arXiv:2406.17854].
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Ab initio study of highly tunable charge transfer in β-RuCl3/graphene heterostructures
Aleksandar Razpopov, Roser Valentí
Phys. Rev. Research (accepted) [arXiv:2406.07623].
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Raman Spectroscopic Fingerprint of Exfoliated S=1 Triangular Lattice Antiferromagnet NiGa2S4
Jazzmin Victorin, Aleksandar Razpopov, Tomoya Higo, Reynolds Dziobek-Garrett, Thomas J. Kempa, Satoru Nakatsuji, Roser Valentí, Natalia Drichko
[arXiv:2406.02853].
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Absence of magnetic order in RuO2: insights from μSR spectroscopy and neutron diffraction
Philipp Keßler, Laura Garcia-Gassull, Andreas Suter, Thomas Prokscha, Zaher Salman, Dmitry Khalyavin, Pascal Manuel, Fabio Orlandi, Igor I. Mazin, Roser Valentí, Simon Moser
npj Spintronics 2, 50 (2024) [arXiv:2405.10820].
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Topological Phase Transitions of Interacting Fermions in the Presence of a Commensurate Magnetic Flux
Axel Fünfhaus, Marius Möller, Thilo Kopp, Roser Valentí
Phys. Rev. B 110, 045107 (2024) [arXiv:2403.04622].
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Electron correlations in the kagome flat band metal CsCr3Sb5
Fang Xie, Yuan Fang, Ying Li, Yuefei Huang, Lei Chen, Chandan Setty, Shouvik Sur, Boris Yakobson, Roser Valenti, Qimiao Si
[arXiv:2403.03911].
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Origins of temperature-dependent magnetism in open-shell 4d and 5d halide perovskites
Ying Li, Ram Seshadri, Stephen D. Wilson, Anthony K. Cheetham, Roser Valenti
[arXiv:2402.14064].
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Influence of graphene on the electronic and magnetic properties of an iron(III) porphyrin chloride complex
Young-Joon Song, Charlotte Gallenkamp, Genís Lleopart, Vera Krewald, Roser Valenti
Physical Chemistry Chemical Physics (accepted) (2024) [arXiv:2402.03544].
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Topology of SmB6 revisited by means of topological quantum chemistry
Mikel Iraola, Iñigo Robredo, TItus Neupert, Juan L. Mañes, Roser Valentí, Maia G. Vergniory
Physical Review Research 6, 033195 (2024) [arXiv:2311.03442].
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Fragility of the magnetic order in the prototypical altermagnet RuO2
Andriy Smolyanyuk, Igor I. Mazin, Laura Garcia-Gassull, Roser Valentí
Phys. Rev. B 109, 134424 (2024) Editor's suggestion [arXiv:2310.06909].
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Tension-compression asymmetry in superelasticity of SrNi2P2 single crystals and the influence of low temperatures
S Xiao, A Valadkhani, S Rommel, PC Canfield, M Aindow, R Valentí,Seok-Woo Lee
Acta Materialia, 119989 (2024).
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Tuning superconductivity and spin-vortex fluctuations in CaKFe4As4 through in-plane antisymmetric strains
Adrian Valadkhani, Belén Zúñiga Céspedes, Salony Mandloi, Mingyu Xu, Juan Schmidt, Sergey L. Bud'ko, Paul C. Canfield, Roser Valentí, Elena Gati
Phys. Rev. B 109, L180503 (2024) [arXiv:2307.10604].
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Bound states and local topological phase diagram of classical impurity spins coupled to a Chern insulator
Simon Michel, Axel Fünfhaus, Robin Quade, Roser Valentí, Michael Potthoff
Phys. Rev. B 109, 155116 (2024) [arXiv:2310.14097].
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Valence-transition-induced changes of the electronic structure in EuPd2Si2
O. Fedchenko, Y.-J. Song, O. Tkach, Y. Lytvynenko, S. V. Chernov, A. Gloskovskii, C. Schlueter, M. Peters, K. Kliemt, C. Krellner, R. Valentí, G. Schönhense, H.J. Elmers
Phys. Rev. B 109, 085130 (2024) [arXiv:2310.06421].
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Spin-phonon interactions on the kagome lattice: Dirac spin liquid versus valence-bond solids
Francesco Ferrari, Federico Becca, Roser Valenti
Phys. Rev. B 109, 165133 (2024) [arXiv:2311.09823].
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Spin Hall conductivity in the Kane-Mele-Hubbard model at finite temperature
D. Lessnich, C. Gauvin-Ndiaye, Roser Valentí, A. -M. S. ~Tremblay
Phys. Rev. B 109, 075143 (2024) [arXiv:2307.15652].
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Magnetic properties of multi-domain epitaxial EuPd2 thin films
Alfons G. Schuck, Sebastian Kölsch, Adrian Valadkhani, Igor I. Mazin, Roser Valentí, Michael Huth
J. Phys. Mater. 7 025008 (2024) [arXiv:2311.00501].
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Strain control of band topology and surface states in antiferromagnetic EuCd2As2
Nayra A. Álvarez Pari, V. K. Bharadwaj, R. Jaeschke-Ubiergo, A. Valadkhani, Roser Valentí, L. Šmejkal, Jairo Sinova
Phys. Rev. B 109, 195117 (2024) [arXiv:2310.19186].
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Heterogeneous Ta-dichalcogenide bilayer: heavy fermions or doped Mott physics?
Lorenzo Crippa, Hyeonhu Bae, Paul Wunderlich, Igor I. Mazin, Binghai Yan, Giorgio Sangiovanni, Tim Wehling, Roser Valenti
Nature Comm. 15, 1357 (2024) [arXiv:2302.14072].
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Theory of moiré magnetism in twisted bilayer α-RuCl3
Muhammad Akram, Jesse Kapeghian, Jyotirish Das, Roser Valenti, Antia S. Botana, Onur Erten
Nano Letters 24, 890 (2024) [arXiv:2310.12211].
in 2023
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Influence of magnetism, strain and pressure on the band topology of EuCd2As2
Adrian Valadkhani, Mikel Iraola, Axel Fünfhaus, Young-Joon Song, Libor Smejkal, Jairo Sinova, Roser Valenti
Phys. Rev. B 108, 235113 (2023) [arXiv:2308.08619].
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Symmetric Kondo Lattice States in Doped Strained Twisted Bilayer Graphene
H. Hu, G. Rai, L. Crippa, J. Herzog-Arbeitman, D. Călugăru, T. Wehling, G. Sangiovanni, R. Valenti, A. M. Tsvelik, B. A. Bernevig
Phys. Rev. Lett. 131, 166501 (2023) [arXiv:2301.04673].
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Constraints on the superconducting state of Sr2RuO4 from elastocaloric measurements
Grgur Palle, Clifford Hicks, Roser Valentí, Zhenhai Hu, You-Sheng Li, Andreas Rost, Michael Nicklas, Andrew P. Mackenzie, Jörg Schmalian
Phys. Rev. B 108, 094516 (2023) [arXiv:2304.07182].
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A jeff=1/2 Kitaev material on the triangular lattice: The case of NaRuO2
Aleksandar Razpopov, David A. S. Kaib, Steffen Backes, Leon Balents, Stephen D. Wilson, Francesco Ferrari, Kira Riedl, Roser Valenti
npj Quantum Materials 8, 36 (2023). [arXiv:2212.11306].
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Hybrid s-wave superconductivity in CrB2
Sananda Biswas, Andreas Kreisel, Adrian Valadkhani, Matteo Dürrnagel, Tilman Schwemmer, Ronny Thomale, Roser Valentí, Igor I. Mazin
Phys. Rev. B 108, L020501 (2023) [arXiv:2211.01054].
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Improved effective vertices in the multi-orbital Two-Particle Self-Consistent method from Dynamical Mean-Field Theory
Karim Zantout, Steffen Backes, Aleksandar Razpopov, Dominik Lessnich, Roser Valenti
Phys. Rev. B 107, 235101 (2023). [arXiv:2211.01400].
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Growth of self-integrated atomic quantum wires and junctions of a Mott semiconductor
T. Asaba, L. Peng, T. Ono, S. Akutagawa, I. Tanaka, H. Murayama, S. Suetsugu, A. Razpopov, Y. Kasahara, T. Terashima, Y. Kohsaka, T. Shibauchi, M. Ichikawa, R. Valentí, S. Sasa, Y. Matsuda
Science Advances 9, eabq5561 (2023). [arXiv:2305.12700].
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Magnetic anisotropy reversal driven by structural symmetry-breaking in monolayer α-RuCl3
Bowen Yang, Yin Min Goh, Suk Hyun Sung, Gaihua Ye, Sananda Biswas, David A. S. Kaib, Ramesh Dhakal, Shaohua Yan, Chenghe Li, Shengwei Jiang, Fangchu Chen, Hechang Lei, Rui He, Roser Valentí, Stephen M. Winter, Robert Hovden, Adam W. Tsen
Nature Materials 22, 50 (2023). https://doi.org/10.1038/s41563-022-01401-3 [arXiv:2210.05733].
News and Views
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Interacting topological quantum chemistry of Mott atomic limits
Martina O. Soldini, Nikita Astrakhantsev, Mikel Iraola, Apoorv Tiwari, Mark H. Fischer, Roser Valenti, Maia G. Vergniory, Glenn Wagner, Titus Neupert
Phys. Rev. B 107, 245145 (2023). [arXiv:2209.10556].
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Microscopic analysis of the valence transition in tetragonal EuPd2Si2
Young-Joon Song, Susanne Schulz, Kristin Kliemt, Cornelius Krellner, Roser Valenti
Phys. Rev. B 107, 075149 (2023). [arXiv:2209.10354].
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Crystal and Electronic Structure of Oxygen Vacancy Stabilized Rhombohedral Hafnium Oxide
Nico Kaiser, Young-Joon Song, Tobias Vogel, Eszter Piros, Taewook Kim, Philipp Schreyer, Stefan Petzold, Roser Valentí, and Lambert Alff
ACS Appl. Electron. Mater. (2023). https://doi.org/10.1021/acsaelm.2c01255
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Detecting topological phases in the square-octagon lattice with statistical methods
Paul Wunderlich, Francesco Ferrari, Roser Valenti
Eur. Phys. J. Plus 138, 336 (2023). [arXiv:2212.04519].
Focus Point on Machine Learning for Materials Physics: From Pitfalls to Best Practices
in 2022
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Ingredients for Generalized Models of κ-Phase Organic Charge-Transfer Salts: A Review
Kira Riedl, Elena Gati, Roser Valenti
Crystals 2022, 12(12), 1689; https://doi.org/10.3390/cryst12121689 [arXiv:2210.14251].
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Superconductivity from repulsive interactions on the kagome lattice
Astrid T. Rømer, Shinibali Bhattacharyya, Roser Valenti, Morten H. Christensen, Brian M. Andersen
Phys. Rev. B 106, 174514 (2022) [arXiv:2208.13521].
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Combined experimental and theoretical study of hydrostatic (He-gas) pressure effects in α-RuCl3
B. Wolf, D. A. S. Kaib, A. Razpopov, S. Biswas, K. Riedl, S. M. Winter, R. Valentí, Y. Saito, S. Hartmann, E. Vinokurova, T. Doert, A. Isaeva, G. Bastien, A. U. B. Wolter, B. Büchner, M. Lang
Phys. Rev. B 106, 134432 (2022) [arXiv:2206.00016].
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Microscopic origin of magnetism in monolayer 3d transition metal dihalides
Kira Riedl, Danila Amoroso, Steffen Backes, Aleksandar Razpopov, Thi Phuong Thao Nguyen, Kunihiko Yamauchi, Paolo Barone, Stephen M. Winter, Silvia Picozzi, Roser Valenti
Phys. Rev. B 106, 035156 (2022) [arXiv:2206.00016].
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Charge-density waves in kagome-lattice extended Hubbard models at the van Hove filling
Francesco Ferrari, Federico Becca, Roser Valenti
Phys. Rev. B 106, L081107 (2022) [arXiv:2204.10328].
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Ultra-sharp lateral p-n junctions in modulation-doped graphene
Jesse Balgley, Jackson Butler, Sananda Biswas, Zhehao Ge, Samuel Lagasse, Takashi Taniguchi, Kenji Watanabe, Matthew Cothrine, David G. Mandrus, Jairo Velasco Jr., Roser Valenti, Erik A. Henriksen
Nano Letters 22, 10 (2022) [arXiv:2203.06295].
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Electronic and magnetic properties of the RuX3 (X=Cl, Br, I) family: Two siblings - and a cousin?
David A. S. Kaib, Kira Riedl, Aleksandar Razpopov, Ying Li, Steffen Backes, Igor Mazin, Roser Valenti
npj Quantum Materials 7:75 (2022) [arXiv:2203.01626].
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Multi-Center Magnon Excitations Open the Entire Brillouin Zone to Terahertz Magnetometry of Quantum Magnets
Tobias Biesner et al.
Adv. Quantum Technol. 5, 2200023 (2022) [arXiv:2203.04343].
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Role of disorder in the electronic and magnetic properties of Ag3LiIr2O6
Ying Li, Roser Valenti
Phys. Rev. B 105, 115123 (2022) [arXiv:2203.01361].
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Statistical learning of engineered topological phases in the kagome superlattice of AV3Sb5
Thomas Mertz, Paul Wunderlich, Shinibali Bhattacharyya, Francesco Ferrari, Roser Valenti
npj Computational Materials 8, 66 (2022) [arXiv:2110.10171].
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Investigation of the magnetoelastic coupling anisotropy in the Kitaev material αα-RuCl3
Vilmos Kocsis, David A. S. Kaib, Kira Riedl, Sebastian Gass, Paula Lampen-Kelley, David G. Mandrus, Stephen E. Nagler, Nicolas Perez, Kornelius Nielsch, Bernd Buechner, Anja U. B. Wolter, Roser Valenti
Phys. Rev. B 105, 094410 (2022) [arXiv:2202.07102].
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Distorted kagome antiferromagnet: Phase diagram and application to Y-kapellasite
Max Hering, Francesco Ferrari, Aleksandar Razpopov, Igor I. Mazin, Roser Valenti, Harald O. Jeschke, Johannes Reuther
npj Computational Materials 8, 10 (2022) [arXiv:2107.13570].
in 2021
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Band-Order Anomaly at the γ-Al2O3/SrTiO3 Interface Drives the Electron-Mobility Boost
Alla Chikina, Dennis V. Christensen, Vladislav Borisov, Marius-Adrian Husanu, Yunzhong Chen, Xiaoqiang Wang, Thorsten Schmitt, Milan Radovic, Naoto Nagaosa, Andrey S. Mishchenko, Roser Valentí, Nini Pryds, Vladimir N. Strocov
ACS Nano 15, 3, 4347 (2021) [arXiv:2104.00498].
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Pseudoelasticity of SrNi2P2 micropillar via Double Lattice Collapse and Expansion
Shuyang Xiao, Vladislav Borisov, Guilherme Gorgen-Lesseux, Sarshad Rommel, Gyuho Song, Jessica M. Maita, Mark Aindow, Roser Valentí, Paul C. Canfield, Seok-Woo Lee
Nano Lett. 21, 7913 (2021) [arXiv:2108.11999].
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Orbital Occupancy and Hybridization in Strained SrVO3 Epitaxial Films
Mathieu Mirjolet, Hari Babu Vasili, Adrian Valadkhani, José Santiso, Vladislav Borisov, Pierluigi Gargiani, Manuel Valvidares, Roser Valentí, Josep Fontcuberta
Phys. Rev. Mat. 5, 095002 (2021) [arXiv:2108.11718].
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Pressure-induced ferromagnetism in the topological semimetal EuCd2As2
Elena Gati, Sergey L. Bud'ko, Lin-Lin Wang, Adrian Valadkhani, Ritu Gupta, Brinda Kuthanazhi, Li Xiang, John M. Wilde, Aashish Sapkota, Zurab Guguchia, Rustem Khasanov, Roser Valenti, Paul C. Canfield
Phys. Rev. B 104, 155124 (2021) [arXiv:2108.01871].
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Spin Vortex Crystal Order in Organic Triangular Lattice Compound
Kira Riedl, Elena Gati, David Zielke, Steffi Hartmann, Oleg M. Vyaselev, Nataliya D. Kushch, Harald O. Jeschke, Michael Lang, Roser Valenti, Mark V. Kartsovnik, Stephen M. Winter
Phys. Rev. Lett. 127, 147204 (2021) [arXiv:2106.02130].
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Effects of spin-phonon coupling in frustrated Heisenberg models
Francesco Ferrari, Roser Valenti, Federico Becca
Phys. Rev. B 104, 035126 (2021) [arXiv:2105.02244].
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Electron-Phonon Coupling and Electron-Phonon Scattering in SrVO3
Mathieu Mirjolet, Francisco Rivadulla, Premysl Marsik, Vladislav Borisov, Roser Valenti, Josep Fontcuberta
Advanced Science 2004207 (2021) [arXiv:2105.01579].
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Magnetoelastic coupling and effects of uniaxial strain in α-RuCl3 from first principles
D. A. S. Kaib, S. Biswas, K. Riedl, S. M. Winter, R. Valenti
Phys. Rev. B 103, L140402 (2021) (Editor's suggestion) [arXiv:2008.08616].
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Elementary band representations for the single-particle Green's function of interacting topological insulators
Dominik Lessnich, Stephen M. Winter, Mikel Iraola, Maia G. Vergniory, Roser Valenti
Phys. Rev. B 104, 085116 (2021) [arXiv:2103.02624].
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Modified Curie-Weiss Law for jeff Magnets
Ying Li, Stephen M. Winter, David A. S. Kaib, Kira Riedl, Roser Valenti
Phys. Rev. B 103, L220408 (2021) [arXiv:2102.08964].
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Tailoring fermion topological states in the fes (square-octagon) lattice using two-dimensional polymers
Tsai-Jung Liu, Maximilian A. Springer, Niclas Heinsdorf, Agnieszka Kuc, Roser Valenti, Thomas Heine
Phy. Rev. B 104, 205419 (2021) [arXiv:2102.12324].
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Magnetization Process of Atacamite: A Case of Weakly Coupled S=1/2 Sawtooth Chains
L. Heinze, H. O. Jeschke, I. I. Mazin, A. Metavitsiadis, M. Reehuis, R. Feyerherm, J.-U. Hoffmann, M. Bartkowiak, O. Prokhnenko, A. U. B. Wolter, X. Ding, V. S. Zapf, C. Corvalán Moya, F. Weickert, M. Jaime, K. C. Rule, D. Menzel, R. Valentí, W. Brenig, and S. Süllow
Phys. Rev. Lett. 126, 207201 (2021) [arXiv:1904.07820].
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Anomalous Quantum Oscillations in a Heterostructure of Graphene on a Proximate Quantum Spin Liquid
V. Leeb, K. Polyudov, S. Mashhadi, S. Biswas, Roser Valenti, M. Burghard, J. Knolle
Phys. Rev. Lett. 126, 097201 (2021) [arXiv:2010.01649].
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Engineering Topological Phases Guided by Statistical and Machine Learning Methods
Thomas Mertz, Roser Valenti
Phys. Rev. Research 3, 013132 (2021) [arXiv:2008.08616].
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Containment efficiency and control strategies for the Corona pandemic costs
Claudius Gros, Roser Valenti, Lukas Schneider, Kilian Valenti, Daniel Gros
Scientific Reports 11, 6848 (2021) [arXiv:2004.00493].
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Predicting the cumulative medical load of COVID-19 outbreaks after the peak in daily fatalities
Claudius Gros, Roser Valenti, Lukas Schneider, Benedikt Gutsche, Dimitrije Markovic
PLOS ONE 16 (4), e0247272 (2021).
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Two-Particle Self-Consistent method for the multi-orbital Hubbard model
Karim Zantout, Steffen Backes, Roser Valenti
Annalen der Physik (Berlin) 2000399 (2021) [arXiv:2008.08098].
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Angle-dependent thermodynamics of α-RuCl3
S. Bachus, D. A. S. Kaib, A. Jesche, V. Tsurkan, A. Loidl, S. M. Winter, A. A. Tsirlin, Roser Valenti, P. Gegenwart
Phys. Rev. B 103, 054440 (2021) [arXiv:2101.07275].
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Electronic structure and coexistence of superconductivity with
magnetism in RbEuFe4As4
T. K. Kim, K. S. Pervakov, D. V. Evtushinsky, S. W. Jung, G. Poelchen, K. Kummer, V. A. Vlasenko, V. M. Pudalov, D. Roditchev, V. S. Stolyarov, D. V. Vyalikh, V. Borisov, R. Valentí, A. Ernst, S. V. Eremeev, E. V. Chulkov
Phys. Rev. B 103, 174517 (2021) [arXiv:2008.00736].
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Prediction of Double-Weyl Points in the Iron-Based Superconductor CaKFe4As4
N. Heinsdorf, M. H. Christensen, M. Iraola, S. Zhang, F. Yang, T. Birol, C. D. Batista, Roser Valenti, R. M. Fernandes
Phys. Rev. B 104, 075101 (2021) [arXiv:2101.05301].
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Towards a Topological Quantum Chemistry description of correlated systems: the case of the Hubbard diamond chain
Mikel Iraola, Niclas Heinsdorf, Apoorv Tiwari, Dominik Lessnich, Thomas Mertz, Francesco Ferrari, Mark H. Fischer, Stephen M. Winter, Frank Pollmann, Titus Neupert, Roser Valenti, Maia G. Vergniory
Phys. Rev. B 104, 195125 (2021) [arXiv:2101.04135].
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Anisotropic superconductivity and Fermi surface reconstruction in the spin-vortex antiferromagnetic superconductor CaK(Fe0.95Ni0.05)4As4
José Benito Llorens, Edwin Herrera, Víctor Barrena, Beilun Wu, Niclas Heinsdorf, Vladislav Borisov, Roser Valenti, William R. Meier, Sergey Bud'ko, Paul C. Canfield, Isabel Guillamón, Hermann Suderow
Phys. Rev. B 103, L060506 (2021) [arXiv:2009.11246].
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The 2021 Quantum Materials Roadmap
F. Giustino, J. H. Lee, F. Trier, M. Bibes, S.M. Winter, R. Valenti, et al.
Review: J. Phys. Mater. 3, 042006 (2021).
in 2020
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Evolution of nematic fluctuations in CaK(Fe1−xNix)4As4 with spin-vortex crystal magnetic order
Anna E. Böhmer, Fei Chen, William R. Meier, Mingyu Xu, Gil Drachuck, Michael Merz, Paul W. Wiecki, Sergey L. Bud'ko, Vladislav Borisov, Roser Valentí, Morten H. Christensen, Rafael M. Fernandes, Christoph Meingast, Paul C. Canfield
[arXiv:2011.13207].
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Variational wave functions for the spin-Peierls transition in the Su-Schrieffer-Heeger model with quantum phonons
Francesco Ferrari, Roser Valenti, Federico Becca
Phys. Rev. B 102, 125149 (2020) [arXiv:2007.14406].
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Analytic continuation of the self-energy via Machine Learning techniques
Taegeun Song, Roser Valenti, Hunpyo Lee
[arXiv:2007.13610].
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Thermodynamic perspective on the field-induced behavior of α-RuCl
S. Bachus, D.A.S. Kaib, Y. Tokiwa, A. Jesche, V. Tsurkan, A. Loidl, S.M. Winter, A.A. Tsirlin, R. Valenti, P. Gegenwart
Phys. Rev. Lett. 125, 097203 (2020) [arXiv:2006.02428].
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Soft and anisotropic local moments in 4d and 5d mixed-valence M2O9 dimers
Ying Li, Alexander A. Tsirlin, Tusharkanti Dey, Philipp Gegenwart, Roser Valenti, Stephen M. Winter
Phys. Rev. B 102, 235142 (2020) [arXiv:2004.13050].
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Non-local correlations in Iron Pnictides and Chalcogenides
Shinibali Bhattacharyya, Kristofer Björnson, Karim Zantout, Daniel Steffensen, Laura Fanfarillo, Andreas Kreisel, Roser Valenti, Brian M. Andersen, P. J. Hirschfeld
Phys. Rev. B 102, 035109 (2020) [arXiv:2003.01638].
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Lattice dynamics in the spin-1/2 frustrated kagome compound herbertsmithite
Ying Li, A. Pustogow, M. Bories, P. Puphal, C. Krellner, M. Dressel, Roser Valenti
Phys. Rev. B 101, 161115(R) (2020) Editors' suggestion [arXiv:2002.04042].
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High-Field Quantum Disordered State in α-RuCl3: Spin Flips, Bound States, and a Multi-Particle Continuum
A. Sahasrabudhe, D. A. S. Kaib, S. Reschke, R. German, T. C. Koethe, J. Buhot, D. Kamenskyi, C. Hickey, P. Becker, V. Tsurkan, A. Loidl, S. H. Do, K. Y. Choi, M. Grüninger, S. M. Winter, Zhe Wang, R. Valenti, P. H. M. van Loosdrecht
Phys. Rev. B 101, 140410(R) (2020) Editors' suggestion [arXiv:1908.11617].
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Deconfinement of Mott Localized Electrons into Topological and Spin-Orbit Coupled Dirac Fermions
Jose M. Pizarro, Severino Adler, Karim Zantout, Thomas Mertz, Paolo Barone, Roser Valenti, Giorgio Sangiovanni, Tim O. Wehling
njp Quantum Materials 5, 79 (2020) [arXiv:2001.04102].
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Charge ordering and low-temperature lattice distortion in the β′-(BEDT-TTF)2CF3CF2SO3 dimer Mott insulator
I. Olejniczak, R. Wesołowski, H. O. Jeschke, R. Valenti, B. Barszcz, and J. A. Schlueter
Phys. Rev. B 101, 035150 (2020).
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Giant pressure-enhancement of multiferroicity in CuBr2
J. S. Zhang, Yiqi Xie, X. Q. Liu, A. Razpopov, V. Borisov, C. Wang, J. P. Sun, Y. Cui, J. C. Wang, X. Ren, Hongshan Deng, Xia Yin, Yang Ding, Yuan Li, J. G. Cheng, Ji Feng, R. Valenti, B. Normand, Weiqiang Yu
Phys. Rev. Research 2, 013144 (2020) [arXiv:1909.04989].
-
Alleviating the Sign Problem in Quantum Monte Carlo Simulations of Spin-Orbit-Coupled Multi-Orbital Hubbard Models
Aaram J. Kim, Philipp Werner, Roser Valenti
Phys. Rev. B 101, 045108 (2020) [arXiv:1907.11298].
in 2019
-
Electronic properties of α-RuCl3 in proximity to graphene
Sananda Biswas, Ying Li, Stephen M. Winter, Johannes Knolle, Roser Valenti
Phys. Rev. Lett. 123, 237201 (2019) (Editor's suggestion) [arXiv:1908.04793].
-
Chemical tuning between triangular and honeycomb structures in a 5d spin-orbit Mott insulator
R. D. Johnson, I. Broeders, K. Mehlawat, Y. Li, Y. Singh, R. Valenti, R. Coldea
Phys. Rev. B 100, 214113 (2019) [arXiv:1908.04584].
-
Microscopic Modeling of Correlated Systems Under Pressure: Representative Examples
Vladislav Borisov, Sananda Biswas, Ying Li, Roser Valenti
a Review: Phys. Status Solidi B. DOI: 10.1002/pssb.201900229.
-
Effect of non-local correlations on the electronic structure of LiFeAs
Karim Zantout, Steffen Backes, Roser Valenti
Phys. Rev. Lett. 123, 256401 (2019) [arXiv:1906.11853].
-
Lattice dynamics coupled to charge and spin degrees of freedom in the molecular dimer-Mott insulator κ-(BEDT-TTF)2Cu[N(CN)2]Cl
Masato Matsuura, Takahiko Sasaki, Satoshi Iguchi, Elena Gati, Jens Müller, Oliver Stockert, Andrea Piovano, Martin Böhm, Jitae T. Park, Sananda Biswas, Stephen M. Winter, Roser Valentí, Akiko Nakao, Michael Lang
Phys. Rev. Lett. 123, 027601 (2019) [arXiv:1906.08590].
-
Pressure-induced formation of rhodium zigzag chains in the honeycomb rhodate Li2RhO3
V. Hermann, S. Biswas, J. Ebad-Allah, F. Freund, A. Jesche, A. A. Tsirlin, M. Hanfland, D. Khomskii, P. Gegenwart, R. Valentí, C. A. Kuntscher
Phys. Rev. B 100, 064105 (2019) [arXiv:1905.04930].
-
Statistical Analysis of the Chern Number in the Interacting Haldane-Hubbard Model
Thomas Mertz, Karim Zantout, Roser Valenti
Phys. Rev. B 100, 125111 (2019) [arXiv:1905.02218].
-
Internal screening and dielectric engineering in magic-angle twisted bilayer graphene
J. M. Pizarro, M. Rösner, R. Thomale, R. Valenti, T. O. Wehling
Phys. Rev. B 100, 161102(R) (2019) [arXiv:1904.11765]. (Editor's suggestion)
-
Atacamite Cu2Cl(OH)3: A model compound for the S=1/2 sawtooth chain?
L. Heinze, H. Jeschke, A. Metavitsiadis, M. Reehuis, R. Feyerherm, J. -U. Hoffmann, A. U. B. Wolter, X. Ding, V. Zapf, C. C. Moya, F. Weickert, M. Jaime, K. C. Rule, D. Menzel, R. Valenti, W. Brenig, S. Süllow
[arXiv:1904.07820].
-
Kitaev honeycomb models in magnetic fields: Dynamical response and hidden symmetries
David A. S. Kaib, Stephen M. Winter, Roser Valenti
Phys. Rev. B 100, 144445 (2019) [arXiv:1904.01025].
-
Ultrahigh Elastically Compressible and Strain-Engineerable
Intermetallic
Compounds Under Uniaxial Mechanical Loading
Gyuho Song, Vladislav Borisov, William R. Meier, Mingyu Xu, Keith J. Dusoe, John T. Sypek, Roser Valenti, Paul C. Canfield, Seok-Woo Lee
APL Mater. 7, 061104 (2019) [arXiv:1904.02256].
-
Evolution from B2g nematics to B1g nematics in heavily
hole-doped iron-based superconductors
Vladislav Borisov, Rafael M. Fernandes, Roser Valenti
Phys. Rev. Lett. 123, 146402 (2019) [arXiV:1902.10729].
-
Magneto-structural properties of the layered quasi-2D triangular-lattice antiferromagnets Cs2CuCl4−xBrx for x = 0,1,2 and 4
S. K. Thallapaka, B. Wolf, E. Gati, L. Postulka, U. Tutsch, B. Schmidt, P. Thalmeier, F. Ritter, C. Krellner, Y. Li, V. Borisov, R. Valentí, M. Lang
Phys. Status Solidi B, Special Issue "Condensed Matter Systems with Variable Many-Body Interactions" (2019) [arXiV:1902.01099].
-
On the saw-tooth torque in anisotropic jeff=1/2 magnets: Application to α-RuCl3
Kira Riedl, Ying Li, Stephen M. Winter, Roser Valenti
Phys. Rev. Lett. 122, 197202 (2019) [arXiV:1809.03943].
-
ab-initio Approaches for Low-Energy Spin Hamiltonians
Kira Riedl, Ying Li, Roser Valenti, Stephen M. Winter
A review: Phys. Status Solidi B. doi:10.1002/pssb.201800684 (2019) [arXiV:1811.06553].
-
Critical Spin Liquid versus Valence Bond Glass in Triangular Lattice Organic κ-(ET)2Cu2(CN)3
Kira Riedl, Roser Valenti, Stephen M. Winter
Nature Communications 10, 2561 (2019) [arXiV:1808.03868].
-
Frustrated magnetism in Mott insulating (V1−xCrx)2O3
J. C. Leiner, H. O. Jeschke, R. Valenti, S. Zhang, A. T. Savici, Jiao Lin, M. B. Stone, M. D. Lumsden, Jiawang Hong, O. Delaire, Wei Bao, C. L. Broholm
Phys. Rev. X 9, 011035 (2019) [arXiV:1804.08605].
in 2018
-
Role of Hydrogen in the spin-orbital-entangled quantum liquid candidate H3LiIr2O6
Ying Li, Stephen M. Winter, Roser Valenti
Phys. Rev. Lett. 121, 247202 (2018) [arXiV:1807.02124].
-
Self-Energy Dispersion in the Hubbard Model
Thomas Mertz, Karim Zantout, Roser Valenti
Phys. Rev. B 98, 235105 (2018) [arXiV:1806.09645].
-
Interplay of lattice, electronic and spin degrees of freedom in detwinned BaFe2As2: a Raman scattering study
A. Baum, Ying Li, M. Tomić, N. Lazarević, D. Jost, F. Löffler, B. Muschler, T. Böhm, J.-H. Chu, I. R. Fisher, R. Valentí, I. I. Mazin, R. Hackl
Phys. Rev. B 98, 075113 (2018) [arXiV:1806.04989].
-
Trends in pressure-induced layer-selective half-collapsed tetragonal phases in the iron-based superconductor family AeAFe4As4
Vladislav Borisov, Paul C. Canfield, Roser Valenti
Phys. Rev. B 98, 064104 (2018) [arXiV:1805.11409].
-
Detuning the Honeycomb of alpha-RuCl3: Pressure-Dependent Optical Studies Reveal Broken Symmetry
Tobias Biesner, Sananda Biswas, Weiwu Li, Yohei Saito, Andrej Pustogow, Michaela Altmeyer, Anja U. B. Wolter, Bernd Büchner, Maria Roslova, Thomas Doert, Stephen M. Winter, Roser Valentí, Martin Dressel
Phys. Rev. B 97, 220401(R) (2018) [arXiV:1802.10060].
-
Uncovering the mechanism of the impurity-selective Mott transition in paramagnetic V2O3
Frank Lechermann, Noam Bernstein, I. I. Mazin, Roser Valenti
Phys. Rev. Lett. 121, 106401 (2018) [arXiV:1801.08906].
-
Evidence for electronically-driven ferroelectricity in the family of
strongly correlated dimerized BEDT-TTF molecular conductors
Elena Gati,Jonas K.H. Fischer,Peter Lunkenheimer,David Zielke, Sebastian Koehler,
Felizitas Kolb, Hans-Albrecht Krug von Nidda, Stephen M. Winter,Harald Schubert,
John A. Schlueter, Harald O. Jeschke, Roser Valenti, and Michael Lang
Phys. Rev. Lett. 120, 247601 (2018) [arXiV:1711.07384].
-
Suppression of topological Mott-Hubbard phases by multiple charge orders in the honeycomb extended Hubbard model
Mario Bijelic, Ryui Kaneko, Claudius Gros, Roser Valenti
Phys. Rev. B 97, 125142 (2018) [arXiV:1801.00064].
-
Probing RuCl3 Beyond Magnetic Order: Effects of Temperature and Magnetic Field
Stephen M. Winter, Kira Riedl, David Kaib, Radu Coldea, Roser Valenti
Phys. Rev. Lett. 120, 077203 (2018) [arXiV:1707.08144].
-
Hedgehog spin vortex crystal in a hole-doped iron based superconductor
W. R. Meier, Q.-P. Ding, A. Kreyssig, S. L. Bud'ko, A. Sapkota, K. Kothapalli, V. Borisov, R. Valenti, C. D. Batista, P. P. Orth, R. M. Fernandes, A. I. Goldman, Y. Furukawa, A. E. Böhmer, P. C. Canfield
Nat. Quant. Mat. 3, 5 (2018) [arXiV:1706.01067].
-
Role of the Open‐Shell Character on the Pressure‐Induced Conductivity of an Organic Donor–Acceptor Radical Dyad
M. Souto, M. C. Gullo, H.-B. Cui, N. Casati, F. Montisci, H. O. Jeschke, R. Valenti, I. Ratera, C. Rovira, J. Veciana
Eur. J. Chem. 24, 5500 (2018).
-
Dynamics and fragmentation mechanism of (CH3-C5H5)Pt(CH3)3 on SiO2 Surfaces
Muthukumar Kaliappan, Harald O. Jeschke, Roser Valenti
Beilstein J. Nanotechnol. 9, 711–720 (2018) [arXiV:1706.07314].
-
Superconductivity in correlated BEDT-TTF molecular conductors: critical
temperatures and gap symmetries
Karim Zantout, Michaela Altmeyer, Roser Valenti
Phys. Rev. B 97, 014530 (2018) [arXiV:1711.09630].
-
Competition between spin-orbit coupling, magnetism, and dimerization in
the honeycomb iridates: alpha-Li2IrO3 under pressure
V. Hermann, M. Altmeyer, J. Ebad-Allah, F. Freund, A. Jesche, A. A. Tsirlin, M. Hanfland, P. Gegenwart, I. I. Mazin, D. I. Khomskii, R. Valenti, C. A. Kuntscher
Phys. Rev. B 97, 020104(R) (2018) [arXiV:1712.01669].
in 2017
-
Nature of optical excitations in the frustrated kagome compound Herbertsmithite
Andrej Pustogow, Ying Li, Ievgen Voloshenko, Pascal Puphal, Cornelius Krellner, Igor I. Mazin, Martin Dressel, Roser Valenti
Phys. Rev. B 96, 241114(R) (2017) [arXiV:1711.11340].
-
Microscopic origin of the mobility enhancement at a spinel/perovskite oxide heterointerface revealed by photoemission spectroscopy
P. Schuetz, D.V. Christensen, V. Borisov, F. Pfaff, P. Scheiderer, L. Dudy, M. Zapf, J. Gabel, Y.Z. Chen, N. Pryds, V.A. Rogalev, V.N. Strocov, C. Schlueter, T.-L. Lee, H.O. Jeschke, R. Valenti, M. Sing, R. Claessen
Phys. Rev. B 96, 161409(R) (2017) [arXiV:1710.05574].
-
Polycyclic aromatic hydrocarbons: Synthesis successes
Roser Valenti, Stephen M. Winter
Nature Chemistry 9, 608 (2017). News and Views
-
From magnetic order to spin-liquid ground states on the S=3/2 triangular lattice
J. Tapp, C. R. dela Cruz, M. Bratsch, N. E. Amuneke, L. Postulka, B. Wolf, M. Lang, H. O. Jeschke, R. Valenti, P. Lemmens, and A. Möller
Phys. Rev. B 96, 064404 (2017).
-
Influence of oxygen vacancies on two-dimensional electron systems at SrTiO3-based interfaces and surfaces
M. Sing, H. O. Jeschke, F. Lechermann, R. Valenti, R. Claessen
Eur. Phys. J. Special Topics 226, 2457 (2017).
-
Magnetic fluctuations and superconducting properties of CaKFe4As4 studied by 75As NMR
J. Cui, Q.-P. Ding, W. R. Meier, A. E. Böhmer, T. Kong, V. Borisov, Y. Lee, S. L. Bud'ko, R. Valenti, P. C. Canfield, Y. Furukawa
Phys. Rev. B 96, 104512 (2017) [arXiV:1706.09075].
-
Models and Materials for Generalized Kitaev Magnetism
Stephen M. Winter, Alexander A. Tsirlin, Maria Daghofer, Jeroen van den Brink, Yogesh Singh, Philipp Gegenwart, Roser Valenti
J. Phys.: Condens. Matter 29, 493002 (2017) [arXiV:1706.06113] (Review).
-
Basic electronic properties of iron selenide under variation of structural parameters
Daniel Guterding, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 96, 125107 (2017) [arXiV:1706.035443].
-
Charge orders in organic charge-transfer salts
Ryui Kaneko, Luca F. Tocchio, Roser Valenti, Federico Becca
New Journal of Physics 19, 103033 (2017). [arXiV:1705.08915]
-
Signatures of a gearwheel quantum spin liquid in a spin-1/2 pyrochlore molybdate Heisenberg antiferromagnet
Yasir Iqbal, Tobias Mueller, Kira Riedl, Johannes Reuther, Stephan Rachel, Roser Valenti, Michel J. P. Gingras, Ronny Thomale, Harald O. Jeschke
Phys. Rev. Materials 1, 071201(R) (2017). [arXiV:1705.05291]
-
Breakdown of Magnons in a Strongly Spin-Orbital Coupled Magnet
Stephen M. Winter, Kira Riedl, Pavel A. Maksimov, Alexander L. Chernyshev, Andreas Honecker, Roser Valenti
Nature Communications 8, 1152 (2017) [arXiV:1702.08466].
-
Pressure induced half-collapsed-tetragonal phase in CaKFe4As4
Udhara S. Kaluarachchi, Valentin Taufour, Aashish Sapkota, Vladislav Borisov, Tai Kong, William R. Meier, Karunakar Kothapalli, Benjamin G. Ueland, Andreas Kreyssig, Roser Valenti, Robert J. McQueeney, Alan I. Goldman, Sergey L. Bud'ko, Paul C. Canfield
Phys. Rev. B 96, 140501(R) (2017) [arXiV:1702.06622].
-
Cu-Sb dumbbell arrangement in the spin-orbital liquid candidate
Ba3CuSb2O9
Michaela Altmeyer, Frederic Mila, Andrew Smerald, Roser Valenti
Phys. Rev. B 96, 115116 (2017) [arXiV:1701.05135].
-
Formation of Hubbard-like bands as a fingerprint of strong electron-electron interactions in FeSe
Matthew D. Watson, Steffen Backes, Amir A. Haghighirad, Moritz Hoesch, Timur K. Kim, Amalia I. Coldea, Roser Valenti
Phys. Rev. B 95, 081106(R) (2017) [arXiv:1612.02676].
-
Interplay of nematic and magnetic orders in FeSe under pressure
Daniel D. Scherer, Anthony Jacko, Christoph Friedrich, Ersoy Sasioglu, Stefan Blugel, Roser Valenti, Brian M. Andersen
Phys. Rev. B 95, 094504 (2017) [arXiv:1612.06085].
-
Importance of Spin-Orbit Coupling in Organic BEDT-TTF and BEDT-TSF Salts
Stephen M. Winter, Kira Riedl, Roser Valenti
Phys. Rev. B 95, 060404(R) (2017) [arXiv:1610.05468].
-
J-freezing and Hund's rules in spin-orbit-coupled multiorbital Hubbard models
Aaram J. Kim, Harald O. Jeschke, Philipp Werner, Roser Valenti
Phys. Rev. Lett. 118, 086401 (2017) [arXiv:1607.05196].
-
Electronic excitations in γ-Li2IrO3
Ying Li, Stephen M. Winter, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 95, 045129 (2017) [arXiv:1609.03316].
-
Non-trivial role of interlayer cation states in iron-based superconductors
Daniel Guterding, Harald O. Jeschke, I. I. Mazin, J. K. Glasbrenner, E. Bascones, Roser Valenti
Phys. Rev. Lett. 118, 017204 (2017) [arXiv:1610.08626].
-
Ab-initio perspective on structural and electronic properties of iron-based superconductors
Daniel Guterding, Steffen Backes, Milan Tomic, Harald O. Jeschke, Roser Valenti
Physica Status Solidi B 254, 1600164 (2017) [arXiv:1606.04411].
-
Combined experimental and theoretical studies of pressure effects in La2Sb
M. Knoener, E. Gati, B. Wolf, M. de Souza, A. Haghighirad, M. Kuhnt, W. Assmus, H. O. Jeschke, M. Tomic, R. Valenti, M. Lang
Physica Status Solidi B 254, 1600168 (2017).
in 2016
-
Quantum spin Hall effect in weak topological rutile-based oxide multilayers
J. L. Lado, Daniel Guterding, Paolo Barone, Roser Valenti, V. Pardo
Phys. Rev. B 94, 235111 (2016) [arXiv:1610.07425].
-
Emergent lattices with geometrical frustration in doped extended Hubbard models
Ryui Kaneko, Luca F. Tocchio, Roser Valenti, Claudius Gros
Phys. Rev. B 94, 195111 (2016) [arXiv:1606.06520].
-
Role of vertex corrections in the matrix formulation of the random phase approximation for the multi-orbital Hubbard model
Michaela Altmeyer, Daniel Guterding, P. J. Hirschfeld, Thomas A. Maier, Roser Valenti, Douglas J. Scalapino
Phys. Rev. B 94, 214515 (2016) [arXiv:1606.06189].
-
Pressure-Induced Conductivity in a Neutral Non-planar Spin-localized Radical
Manuel Souto, HengBo Cui, Miriam Peña-Alvarez, Valentín García Baonza, Harald O Jeschke, Milan Tomic, Roser Valenti, Davide Blasi, Imma Ratera, Concepcio Rovira, Jaume Veciana
J. Am. Chem. Soc. DOI: 10.1021/jacs.6b02888 (2016).
-
Microscopic origin of the charge transfer in single crystals based on thiophene derivatives: A combined NEXAFS and density functional theory approach
A. Chernenkaya, A. Morherr, S. Backes, W. Popp, S. Witt, X. Kozina, S. A. Nepijko, M. Bolte, K. Medjanik, G. Oehrwall, C. Krellner, M. Baumgarten, H. J. Elmers, G. Schoenhense, H. O. Jeschke and R. Valenti +
J. Chem. Phys. 145, 034702 (2016).
-
Artificial Atoms Based on Correlated Materials
Jochen Mannhart, Hans Boschker, Thilo Kopp, Roser Valenti
Reports on Progress in Physics 79, 084508 (2016) [arXiv:1606.04245].
-
Hydrostatic pressure response of an oxide two-dimensional electron system
J. Zabaleta, V. S. Borisov, R. Wanke, H. O. Jeschke, S. C. Parks, B. Baum, A. Teker, T. Harada, K. Syassen, T. Kopp, N. Pavlenko, R. Valenti, J. Mannhart
Phys. Rev. B 93, 235117 (2016) [arXiv:1605.08528].
-
Competition between disorder and Coulomb interaction in a two-dimensional plaquette Hubbard model
Hunpyo Lee, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 93, 224203 (2016) [arXiv:1605.08514].
-
Reduction of magnetic interlayer coupling in barlowite through isoelectronic substitution
Daniel Guterding, Roser Valenti, H. O. Jeschke
Phys. Rev. B 94, 125136 (2016) [arXiv:1605.08162].
-
Near-degeneracy of extended s+dx2−y2 and dxy order parameters in quasi-two-dimensional organic superconductors
Daniel Guterding, Michaela Altmeyer, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 94, 024515 (2016) [arXiv:1605.07017].
-
Unconventional magnetism on a honeycomb lattice in a-RuCl3 studied by muon spin rotation
F. Lang, P. J. Baker, A. A. Haghighirad, Y. Li, D. Prabhakaran, R. Valenti, S. J. Blundell
Phys. Rev. B 94, 020407(R) (2016) [arXiv:1604.04565].
-
Prospects of quantum anomalous and quantum spin Hall effect in doped kagome lattice Mott insulators
Daniel Guterding, Harald O. Jeschke, Roser Valenti
Scientific Reports 6, 25988 (2016).
-
Stabilization of the tetragonal structure in Ba(1-x)SrxCuSi2O6
Pascal Puphal, Denis Sheptyakov, Natalija van Well, Lars Postulka, Ivo Heinmaa, Franz Ritter, Wolf Assmus, Bernd Wolf, Michael Lang, Harald O. Jeschke, Roser Valenti, Raivo Stern, Christian Ruegg, Cornelius Krellner
Phys. Rev. B 93, 174121 (2016) [arXiv:1604.03718].
-
Evidence for eight node mixed-symmetry superconductivity in a correlated organic metal
Daniel Guterding, Sandra Diehl, Michaela Altmeyer, Torsten Methfessel, Ulrich Tutsch, Harald Schubert, Michael Lang, Jens Mueller, Michael Huth, Harald O. Jeschke, Roser Valenti, Martin Jourdan, Hans-Joachim Elmers
Phys. Rev. Lett. 116, 237001 (2016) [arXiv:1510.09209].
-
Ab initio determination of spin Hamiltonians with anisotropic exchange interactions: the case of the pyrochlore ferromagnet Lu2V2O7
Kira Riedl, Daniel Guterding, Harald O. Jeschke, Michel J. P. Gingras, Roser Valenti
Phys. Rev. B 94, 014410 (2016) [arXiv:1604.03472]
-
Magnetism, spin texture and in-gap states: Atomic specialization at the surface of oxygen-deficient SrTiO3
Michaela Altmeyer, Harald O. Jeschke, Oliver Hijano-Cubelos, Cyril Martins, Frank Lechermann, Klaus Koepernik, Andres Santander-Syro, Marcelo J. Rozenberg, Roser Valenti, Marc Gabay
Phys. Rev. Lett. 116, 157203 (2016) [arXiv:1511.08614].
-
Electron dichotomy on the SrTiO3 defect surface augmented by many-body effects
Frank Lechermann, Harald O. Jeschke, Aaram J. Kim, Steffen Backes, Roser Valenti
Phys. Rev. B 93, 121103(R) (2016) [arXiv:1603.04986].
-
Challenges in Design of Kitaev Materials: Magnetic Interactions from Competing Energy Scales
Stephen M. Winter, Ying Li, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 93, 214431 (2016) (Editor's Suggestion) [arXiv:1603.02548].
-
Hubbard band or oxygen vacancy states in the correlated electron metal SrVO3?
S. Backes, T. C. Roedel, F. Fortuna, E. Frantzeskakis, P. Le Fevre, F. Bertran, M. Kobayashi, R. Yukawa, T. Mitsuhashi, M. Kitamura, K. Horiba, H. Kumigashira, R. Saint-Martin, A. Fouchet, B. Berini, Y. Dumont, A. J. Kim, F. Lechermann, H. O. Jeschke, M. J. Rozenberg, R. Valenti, A. F. Santander-Syro
Phys. Rev. B 94, 241110(R) (2016) (Editor's Suggestion) [arXiv:1602.06909].
-
Spontaneous symmetry breaking in correlated wave functions
Ryui Kaneko, Luca F. Tocchio, Roser Valentí, Federico Becca, Claudius Gros
Phys. Rev. B 93, 125127 (2016) [arXiv:1510.08653].
-
Transition to collapsed tetragonal phase in CaFe2As2 single crystals as seen by 57Fe Mossbauer spectroscopy
Sergey L. Bud'ko, Xiaoming Ma, Milan Tomic, Sheng Ran, Roser Valenti, Paul C. Canfield
Phys. Rev. B 93, 024516 (2016) [arXiv:1506.06971].
in 2015
-
The monoclinic crystal structure of RuCl3 and the zigzag antiferromagnetic ground state
R. D. Johnson, S. Williams, A. A. Haghighirad, J. Singleton, V. Zapf, P. Manuel, I. I. Mazin, Y. Li, H. O. Jeschke, R. Valenti, R. Coldea
Phys. Rev. B 92, 235119 (2015). [arXiv:1509.02670].
-
Paramagnetism in the kagome compounds (Zn,Mg,Cd)Cu3(OH)6Cl2
Yasir Iqbal, Harald O. Jeschke, Johannes Reuther, Roser Valenti, I. I. Mazin, Martin Greiter, Ronny Thomale
Phys. Rev. B 92, 220404(R) (2015). [arXiv:1506.03436].
-
Microscopic nature of correlations in multi-orbital AFe2As2 (A=K, Rb, Cs): Hund's coupling versus Coulomb repulsion
Steffen Backes, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 92, 195128 (2015). [arXiv:1507.07914].
-
Electronic structure and spin-orbit driven magnetism in d4.5 insulator Ba3YIr2O9
S. K. Panda, S. Bhowal, Ying Li, S. Ganguly, Roser Valentí, L. Nordström, and I. Dasgupta
Phys. Rev. B 92, 180403(R) (2015). [arXiv:1511.03112].
-
Zigzag antiferromagnetic quantum ground state in monoclinic honeycomb lattice antimonates A3Ni2SbO6(A=Li,Na)
E. A. Zvereva, M. I. Stratan, Y. A. Ovchenkov, V. B. Nalbandyan, J.-Y. Lin, E. L. Vavilova, M. F. Iakovleva, M. Abdel-Hafiez, A. V. Silhanek, X.-J. Chen, A. Stroppa, S. Picozzi, H. O. Jeschke, R. Valenti, A. N. Vasiliev
Phys. Rev. B 92, 144401 (2015).
-
Influence of molecular conformations on the electronic structure of
organic charge transfer salts
Daniel Guterding, Roser Valenti, Harald O. Jeschke
Phys. Rev. B 92, 081109(R) (2015). [arXiv:1506.06010]
-
Barlowite as a canted antiferromagnet: theory and experiment
Harald O. Jeschke, Francesc Salvat-Pujol, Elena Gati, Nguyen Hieu Hoang, Bernd Wolf, Michael Lang, John A. Schlueter, Roser Valenti
Phys. Rev B 92, 094417 (2015) [arXiv:1412.4668].
-
Surface excitations in the modelling of electron transport for electron- beam-induced deposition experiments
Francesc Salvat-Pujol, Roser Valenti, Wolfgang S. Werner
Beilstein J. Nanotechnol. 6, 1260 (2015). [arXiv:1505.00938]
-
Role of layer packing for the electronic properties of the organic superconductor (BEDT-TTF)2Ag(CF3)4(TCE)
Michaela Altmeyer, Roser Valenti, Harald O. Jeschke
Phys. Rev. B 91, 245137 (2015). [arXiv:1503.07805]
-
Effect of magnetic frustration on nematicity and superconductivity in Fe chalcogenides
J. K. Glasbrenner, I. I. Mazin, Harald O. Jeschke, P. J. Hirschfeld, Roser Valenti
Nature Physics 11, 953–958 (2015) [arXiv:1501.04946].
-
Origin of the superconducting state in the collapsed tetragonal phase of KFe2As2
Daniel Guterding, Steffen Backes, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 91, 140503(R) (2015). [arXiv:1501.03068]
-
Analysis of the optical conductivity for A2IrO3 (A = Na, Li) from first principles
Ying Li, Kateryna Foyevtsova, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 91, 161101(R) (2015). [arXiv:1410.4243]
-
Effects of Lifshitz Transition on Charge Transport in Magnetic Phases of Fe-Based Superconductors
Y. Wang, Maria N. Gastiasoro, Brian M. Andersen, M. Tomić, Harald O. Jeschke, Roser Valenti, Indranil Paul, P. J. Hirschfeld
Phys. Rev. Lett. 114, 097003 (2015). [arXiv:1408.1933]
-
Unified picture of the doping dependence of superconducting transition temperatures in alkali metal/ammonia intercalated FeSe
Daniel Guterding, Harald O. Jeschke, P. J. Hirschfeld, Roser Valenti
Phys. Rev. B 91, 041112(R) (2015). [arXiv:1410.7565].
-
Localized versus itinerant states created by multiple oxygen vacancies in SrTiO3
Harald O. Jeschke, Juan Shen, Roser Valenti
New J. Phys. 17, 023034 (2015). [arXiv:1407.7060]
-
Low-temperature structural investigations of the frustrated quantum antiferromagnets Cs2CuCl(4-x)Br(x)
Natalija van Well, Kateryna Foyevtsova, Saskia Gottlieb-Schoenmeyer, Franz Ritter, Rudra Sekhar Manna, Bernd Wolf, Martin Meven, Christian Pfleiderer, Michael Lang, Wolf Assmus, Roser Valenti, Cornelius Krellner
Phys. Rev B 91, 035124 (2015) [arXiv:1410.6896].
-
Comparing charge transfer tuning effects by chemical substitution and uniaxial pressure in the organic charge transfer complex tetramethoxypyrene-tetracyanoquinodimethane
Milan Rudloff, Kai Ackermann, Michael Huth, Harald O. Jeschke, Milan Tomic, Roser Valenti, Benedikt Wolfram, Martin Broering, Michael Bolte, Dennis Chercka, Martin Baumgarten, Klaus Muellen
Physical Chemistry Chemical Physics 17, 4118 (2015)[arXiv:1410.5552].
in 2014
-
Evidence of a field-induced Berezinskii–Kosterlitz–Thouless scenario in a two-dimensional spin–dimer
system
U. Tutsch, B. Wolf, S. Wessel, L. Postulka, Y. Tsui, H. O. Jeschke, I. Opahle, T. Saha-Dasgupta, R. Valenti, A. Bruehl, K. Removic-Langer, T. Kretz, H.-W. Lerner, M. Wagner, M. Lang
Nature Communications 5, 5169 (2014).
-
Unfolding of the electronic structure through the induced representations of space groups: Application to Fe-based superconductors
Milan Tomic, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 90, 195121 (2014). (Editor's suggestion) [arXiv:1408.2258]
-
Correlation effects in the tetragonal and collapsed tetragonal phase of CaFe2As2
Jean Diehl, Steffen Backes, Daniel Guterding, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 90, 085110 (2014). [arXiv:1406.1314]
-
Electronic structure and de Haas-van Alphen frequencies in KFe2As2 within LDA+DMFT
Steffen Backes, Daniel Guterding, Harald O. Jeschke, Roser Valenti
New J. Phys. 16, 083025 (2014). [arXiv:1403.6993]
-
One-dimensional spin liquid, collinear, and spiral phases from uncoupled chains to the triangular lattice
Luca F. Tocchio, Claudius Gros, Roser Valenti, Federico Becca
Phys. Rev. B 89, 235107 (2014). [arXiv:1403.4497]
-
Theoretical prediction of a strongly correlated Dirac metal
I. I. Mazin, Harald O. Jeschke, Frank Lechermann, Hunpyo Lee, Mario Fink, Ronny Thomale, Roser Valenti
Nature Communications 5, 4261 (2014). [arXiv:1403.0616]
-
Determination of magnetic form factors for organic charge transfer
salts: a first principles investigation
Francesc Salvat-Pujol, Harald O. Jeschke, and Roser Valenti
Phys. Rev B 90, 041101(R) (2014). [arXiv:1402.6599]
-
Effect of isoelectronic doping on honeycomb lattice iridate A2IrO3
S. Manni, Sungkyun Choi, I. I. Mazin, R. Coldea, Michaela Altmeyer, Harald O. Jeschke, Roser Valenti, P. Gegenwart
Phys. Rev. B 89, 245113 (2014). (Editor's suggestion) [arXiv:1312.0815]
-
Field-induced nematic-like magnetic transition in an iron pnictide superconductor, Ca10(Pt3As8)((Fe(1-x)Ptx)2As2)5
M. D. Watson, A. McCollam, S.F. Blake, D. Vignolles, L. Drigo, I. I. Mazin, D. Guterding, H. O. Jeschke, R. Valenti, N. Ni, R. Cava, A. I. Coldea
Phys. Rev. B 89, 205136 (2014). [arXiv:1310.3728]
-
LDA+DMFT for organic molecular crystals: spectral and optical properties of kappa-(BEDT-TTF)2Cu[N(CN)2]Cl
Johannes Ferber, Kateryna Foyevtsova, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 89, 205106 (2014). [arXiv:1209.4466]
-
Dynamics of tungsten hexacarbonyl, dicobalt octacarbonyl and their fragments adsorbed on silica surfaces
Kaliappan Muthukumar, Roser Valenti, Harald O. Jeschke
Journal of Chemical Physics 140, 184706 (2014). [arXiv:1306.2567]
-
Origin of the giant pressure-induced volume collapse in MnS2
Simon A.J. Kimber, Ashkan Salamat, Shaun R. Evans, Harald O. Jeschke, Kaliappan Muthukumar, Milan Tomic, Francesc Salvat-Pujol, Roser Valenti, Maria V. Kaisheva, Ivo Zizak, Tapan Chatterji
Proc. Natl. Acad. Sci. 111, 5106 (2014). [arXiv:1305.7119]
-
Phase diagram of the square lattice bilayer Hubbard model: A variational Monte Carlo study
Robert Rueger, Luca F. Tocchio, Roser Valenti, Claudius Gros
New Jour. Phys. 16, 033010 (2014). [arXiv:1311.6504]
-
A valence bond liquid on the honeycomb lattice
Simon A. J. Kimber, I. I. Mazin, Juan Shen, Harald O. Jeschke, Sergey V. Streltsov, Dimitri N. Argyriou, Roser Valenti, Daniel I. Khomskii
Phys. Rev. B 89, 081408(R) (2014). [arXiv:1310.7810]
-
Dramatic Changes in the Electronic Structure Upon Transition to the Collapsed Tetragonal Phase in CaFe2As2
R. S. Dhaka, Rui Jiang, S. Ran, S. L. Bud'ko, P. C. Canfield, B. N. Harmon, Adam Kaminski, Milan Tomic, Roser Valenti, and Yongbin Lee
Phys. Rev. B 89, 020511(R) (2014). [arXiv:1401.5416]
-
Competition between band and Mott insulator in the bilayer Hubbard model: a dynamical cluster approximation study
Hunpyo Lee, Yu-Zhong Zhang, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 89, 035139 (2014). [arXiv:1310.2821]
-
Novel liquid-like correlations in single crystalline Y2Mo2O7: an unconventional spin glass
H. J. Silverstein, K. Fritsch, F. Flicker, A.M. Hallas, J.S. Gardner, Y. Qiu, G. Ehlers, A.T. Savici, Z. Yamani, K.A. Ross, B.D. Gaulin, M.J.P. Gingras, J.A.M. Paddison, K. Foyevtsova, R. Valenti, F. Hawthorne, C.R. Wiebe, H.D. Zhou
Phys. Rev. B 89, 054433 (2014). [arXiv:1305.1274]
in 2013
-
Orbital Selective Phase Transitions
Yao Yao, Yu-Zhong Zhang, Hunpyo Lee, Harald O. Jeschke, Roser Valenti, Hai-Qing Lin, Chang-Qin Wu
Mod. Phys. Lett. B 27, 1330015 (2013) [arXiv:1403.1664]
-
Importance of anisotropy in the spin-liquid candidate Me3EtSb[Pd(dmit)2]2
A.C. Jacko, Luca F. Tocchio, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 88, 155139 (2013). [arXiv:1308.4507]
-
Origin of the insulating state in honeycomb iridates and rhodates
I. I. Mazin, S. Manni, K. Foyevtsova, Harald O. Jeschke, P. Gegenwart, and Roser Valenti
Phys. Rev. B 88, 035115 (2013) [arXiv:1304.2258]
-
Ab initio analysis of the tight-binding parameters and magnetic interactions in Na2IrO3
Kateryna Foyevtsova, Harald O. Jeschke, I. I. Mazin, D. I. Khomskii, Roser Valenti
Phys. Rev. B 88, 035107 (2013) [arXiv:1303.2105]
-
Why MgFeGe is not a superconductor
H.O. Jeschke, I. I. Mazin, and R. Valenti
Phys. Rev. B (Rapid Comm.) 87, 241105 (2013) [arXiv:1305.7368]
-
Semiclassical approximation solved by Monte Carlo as an efficient
impurity solver for dynamical mean field theory and its cluster
extensions
Hunpyo Lee, Yu-Zhong Zhang, Hoonkyung Lee, Yongkyung Kwon, Harald O. Jeschke, and Roser Valenti
Phys. Rev. B 88, 165126 (2013). [arXiv:1303.6813]
-
Simulation of electron transport in electron beam induced deposition of nanostructures
Francesc Salvat-Pujol, Harald O. Jeschke, Roser Valenti
Beilstein J. Nanotechnol. 4, 781 (2013) [arXiv:1303.1739]
-
First-principles determination of Heisenberg Hamiltonian parameters for the spin-1/2 kagome antiferromagnet ZnCu3(OH)6Cl2
Harald O. Jeschke, Francesc Salvat-Pujol, Roser Valenti
Phys. Rev. B 88, 075106 (2013) [arXiv:1303.1310]
-
Absence of metallicity in K-doped picene: Importance of electronic correlations
Andreas Ruff, Michael Sing, Ralph Claessen, Hunpyo Lee, Milan Tomic, Harald O. Jeschke, Roser Valenti
Phys. Rev. Lett. 110, 216403 (2013) [arXiv:1210.4065]
-
Uniaxial strain effects on the structural and electronic properties of BaFe2As2 and CaFe2As2
Milan Tomic, Harald O. Jeschke, Rafael M. Fernandes, Roser Valenti
Phys. Rev B 87, 174503 (2013) [arXiv:1210.5504]
-
Electronic properties of Fabre charge-transfer salts under various temperature and pressure conditions
A. C. Jacko, H. Feldner, E. Rose, F. Lissner, M. Dressel, Roser Valenti, Harald O. Jeschke
Phys. Rev. B 87, 155139 (2013). [arXiv:1302.2454]
-
Spin-liquid versus spiral-order phases in the anisotropic triangular
lattice
Luca Tocchio, Helene Feldner, Federico Becca, Roser Valenti, Claudius Gros
Phys. Rev. B 87, 035143 (2013). [arXiv:1209.1928]
-
Mott correlated states in the underdoped two-dimensional Hubbard model: variational Monte Carlo versus a dynamical cluster approximation
Luca F. Tocchio, Hunpyo Lee, Harald O. Jeschke, Roser Valenti, Claudius Gros
Phys. Rev. B 87, 045111 (2013). [arXiv:1207.6261]
in 2012
-
Ab initio study of the two-dimensional metallic state at the surface of SrTiO3: importance of oxygen vacancies
Juan Shen, Hunpyo Lee, Roser Valenti, Harald O. Jeschke,
Phys. Rev. B 86, 195119 (2012). [arXiv:1208.3401]
-
Simulation of structural and electronic properties of amorphous tungsten oxycarbides
Kaliappan Muthukumar, Roser Valenti, Harald O. Jeschke,
New. Jour. Phys. 14, 113028 (2012). [arXiv:1207.6951]
-
Pattern formation in the dipolar Ising model on a two-dimensional honeycomb lattice
Robert Rueger, Roser Valenti
Phys. Rev. B 86, 024431 (2012). [arXiv:1207.1864]
-
Fermi surface topology of LaFePO and LiFeP
Johannes Ferber, Harald O. Jeschke, Roser Valenti
Phys. Rev. Lett 109, 236403 (2012) [arXiv:1206.4551]
-
Spontaneous Dissociation of Co2(CO)8 and Autocatalytic growth of Co on SiO2 : A Combined Experimental and Theoretical Investigation
Kaliappan Muthukumar, Harald O. Jeschke, Roser Valenti, Evgeniya Begun, Johannes Schwenk, Fabrizio Porrati, Michael Huth
Beilstein Journal of Nanotechnology 3, 546 (2012) [arXiv:1205.4167]
-
Na2IrO3 as a molecular orbital crystal
I. I. Mazin, H. O. Jeschke, K. Foyevtsova, R. Valenti, D. I. Khomskii
Phys. Rev. Lett. 109, 197201 (2012). [arXiv:1205.0434]
-
Physisorption of an organometallic platinum complex on silica. An ab initio study
Juan Shen, Kaliappan Muthukumar, Harald O. Jeschke, Roser Valenti
New J. Phys. 14, 073040 (2012) [arXiv:1203.4109]
-
Alternating spin chains coupled by frustrated interactions in the multiferroic FeTe2O5Br
M. Pregelj, H. O. Jeschke, H. Feldner, R. Valenti, A. Honecker, T. Saha-Dasgupta, H. Das, S. Yoshii, T. Morioka, H. Nojiri, H. Berger, A. Zorko, O. Zaharko, D. Arcon
Phys. Rev. B 86, 054402 (2012) [arXiv:1202.4799]
-
Benchmarking a dynamical cluster approximation within an augmented plane-wave framework: the example of SrVO3
Hunpyo Lee, Kateryna Foyevtsova, Johannes Ferber, Markus Aichhorn, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 85, 165103 (2012).[arXiv:1111.0890]
-
Uniaxial versus hydrostatic pressure-induced phase transitions in CaFe2As2 and BaFe2As2
Milan Tomic, Roser Valenti, Harald O. Jeschke
Phys. Rev. B 85, 094105 (2012). [arXiv:1106.5623]
-
LDA+DMFT study of the effects of correlation in LiFeAs
Johannes Ferber, Kateryna Foyevtsova, Roser Valenti, Harald O. Jeschke
Phys. Rev. B 85, 094505 (2012). [arXiv:1111.1620]
-
Orbital-Resolved Partial Charge Transfer from the Methoxy Groups of
Substituted Pyrenes in Complexes with Tetracyanoquinodimethane- A NEXAFS
Study
Katerina Medjanik, Dennis Chercka, Peter Nagel, Michael Merz, Stefan Schuppler, Martin Baumgarten, Klaus Muellen, Sergej A. Nepijko, Hans-Joachim Elmers, Gerd Schoenhense, Harald O. Jeschke, Roser Valenti
J. Am. Chem. Soc., 134 (10), pp 4694 - 4699 (2012).
-
Momentum spectrometer for electron-electron coincidence studies on superconductors
R. Wallauer, S. Voss, L. Foucar, T. Bauer, D. Schneider, J. Titze, B. Ulrich, K. Kreidi, N. Neumann, T. Havermeier, M. Schoeffler, T. Jahnke, A. Czasch, L. Schmidt, A. Kanigel, J. C. Campuzano, H. Jeschke, R. Valenti, A. Mueller, G. Berner, M. Sing, R. Claessen, H. Schmidt-Boecking, R. Doerner
Rev. Sci. Instrum. 83, 103905 (2012).
-
A General Mechanism for Orbital Selective Phase Transitions
Yu-Zhong Zhang, Hunpyo Lee, Hai-Qing Lin, Chang-Qin Wu, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 85, 035123 (2012). [arXiv:1201.1689]
-
Temperature dependence of structural and electronic properties of the spin-liquid candidate kappa-(BEDT-TTF)2Cu2(CN)3
Harald O. Jeschke, Mariano de Souza, Roser Valenti, Rudra Sekhar Manna, Michael Lang, John A. Schlueter
Phys. Rev. B 85, 035125 (2012). [arXiv:1111.1620]
in 2011
-
Interaction of W(CO)6 with SiO2 Surfaces -- A Density Functional Study
Kaliappan Muthukumar, Ingo Opahle, Juan Shen, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 84, 205442 (2011) [arXiv:1107.5172]
-
Orbital selective phase transition induced by different magnetic states: A dynamical cluster approximation study
Hunpyo Lee, Yu-Zhong Zhang, Harald O. Jeschke, Roser Valenti
Phys. Rev. B (RC) 84, 020401 (2011). [arXiv:1011.0334].
-
Anisotropic two-orbital Hubbard model: single-site versus cluster dynamical mean-field theory
Hunpyo Lee, Yu-Zhong Zhang, Harald O. Jeschke, Roser Valenti
Annalen der Physik 523, 583 (2011). [arXiv:1106.5255]
-
Multi-step approach to microscopic models for frustrated quantum magnets - the case of the natural mineral azurite
Harald Jeschke, Ingo Opahle, Hem Kandpal, Roser Valenti, Hena Das, Tanusri Saha-Dasgupta, Oleg Janson, Helge Rosner, Andreas Bruehl, Bernd Wolf, Michael Lang, Johannes Richter, Shijie Hu, Xiaoqun Wang, Robert Peters, Thomas Pruschke, Andreas Honecker
Phys. Rev. Lett. 106, 217201 (2011). [arXiv:1012.1090].
-
Distinct magnetic regimes through site-selective atom substitution in the frustrated quantum antiferromagnet Cs2CuCl4-x$Brx
P. T. Cong, B. Wolf, M. de Souza, N. Krueger, A. A. Haghighirad, S. Gottlieb- Schoenmeyer, F. Ritter, W. Assmus, I. Opahle, K. Foyevtsova, H. O. Jeschke, R. Valenti, L. Wiehl, M. Lang
Phys. Rev. B 83, 064425 (2011). [arXiv:1012.2269].
-
Thermally induced crystal-to-crystal transformations accompanied by changes in the magnetic properties of a CuII-p-hydroquinonate polymer
N.H. Phan, I. Halasz, I. Opahle, E. Alig, L. Fink, J.W. Bats, P.T. Cong, H.-W. Lerner, B. Sarkar, B. Wolf, H.O. Jeschke, M. Lang, Roser Valenti, R. Dinnebier and M. Wagner
CrystEngComm 13, 391 (2011).
-
Derivation of effective microscopic models for the frustrated antiferromagnets Cs2CuCl4 and Cs2CuBr4 from first principles
Kateryna Foyevtsova, Ingo Opahle, Yu-Zhong Zhang, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 83, 125126 (2011) [arXiv:1009.0697].
in 2010
-
Analysis of spin density wave conductivity spectra of iron pnictides in the framework of density functional theory
Johannes Ferber, Yu-Zhong Zhang, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 82, 165102 (2010) [arXiv:1005.1374].
-
Local moments and symmetry breaking in metallic PrMnSbO
Simon A.J. Kimber, Adrian H. Hill, Yu-Zhong Zhang, Harald O. Jeschke, Roser Valenti, Clemens Ritter, Inga Schellenberg, Wilfred Hermes, Rainer Poettgen, Dimitri N. Argyriou
Phys. Rev. B (Rapid Comm.) 82, 100412 (2010) [arXiv:1006.0341].
-
Modulation of pairing interaction in Bi2Sr2CaCu2O8+δ by an O dopant: A density functional theory study
Kateryna Foyevtsova, H. C. Kandpal, Harald O. Jeschke, S. Graser, H.-P. Cheng, Roser Valenti, and P. J. Hirschfeld
Phys. Rev. B 82, 054514 (2010) [arXiv:1006.2014].
-
Comparative study of FeCr2S4 and FeSc2S4: Spinels with orbitally active A site
S. Sarkar, T. Maitra, Roser Valenti, and T. Saha-Dasgupta
Phys. Rev. B (RC) 82, 041105 (2010) [arXiv:1007.2753].
-
Possible origin of the reduced magnetic moment in iron pnictides: Frustrated versus unfrustrated bands
Hunpyo Lee, Yu-Zhong Zhang, Harald O. Jeschke, Roser Valenti
Phys. Rev. B (RC) 81, 220506 (2010) [arXiv:0912.4024].
-
Importance of Itineracy and Quantum Fluctuations for the Magnetism in Iron Pnictides
Yu-Zhong Zhang, Hunpyo Lee, Ingo Opahle, Harald O. Jeschke, Roser Valenti
accepted for publication in Jour. of Phys. and Chem. in Solids (2010) [arXiv:1005.1170].
-
Can the Mott Insulator TiOCl be Metallized by Doping? A First-Principles Study
Yu-Zhong Zhang, Kateryna Foyevtsova, Harald O. Jeschke, Martin U. Schmidt, Roser Valenti
Phys. Rev. Lett 104, 146402 (2010) [arXiv:0905.1276].
-
Itinerant Nature of Magnetism in Iron Pnictides: A first principles study
Yu-Zhong Zhang, Ingo Opahle, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 81 094505 (2010) [arXiv:1001.0536].
-
Orbital character variation of the Fermi surface and doping dependent changes of the dimensionality in BaFe2-xCoxAs2 from angle-resolved photoemission spectroscopy
S. Thirupathaiah, S. de Jong, R. Ovsyannikov, H.A. Duerr, A. Varykhalov, R. Follath, Y. Huang, R. Huisman, M.S. Golden, Yu-Zhong Zhang, H.O. Jeschke, R. Valenti, A. Erb, A. Gloskovskii, J. Fink
Phys. Rev. B 81, 104512 (2010) [arXiv:0910.0147].
-
Dynamical cluster approximation study of the anisotropic two-orbital Hubbard model
Hunpyo Lee, Yu-Zhong Zhang, Harald O. Jeschke, Roser Valenti, Hartmut Monien
Phys. Rev. Lett 104, 026402 (2010) [arXiv:0910.3911].
-
Pressure-driven phase transitions in correlated systems
Yu-Zhong Zhang, Ingo Opahle, Harald O. Jeschke, Roser Valenti
J. Phys.: Condens. Matter 22 (2010) 164208 [arXiv:0910.0158].
-
First principles determination of the model parameters in kappa-(ET)2Cu2(CN)3
Harald O. Jeschke, Hem C. Kandpal, Ingo Opahle, Yu-Zhong Zhang, Roser Valenti
Physica B 405, 224 (2010) [arXiv:0909.5658].
in 2009
-
Electronic structure of the two-dimensional Heisenberg antiferromagnet VOCl: a multi-orbital Mott insulator
S. Glawion, M. R. Scholz, Y.-Z. Zhang, R. Valenti, T. Saha-Dasgupta, M. Klemm, J. Hemberger, S. Horn, M. Sing, R. Claessen
Phys. Rev. B 80, 155119 (2009) [arXiv:0909.2029].
-
Pressure-induced structure phase transitions in iron-pnictide
AFe2As2 superconductors using ab initio molecular-dynamics calculations
Yu-Zhong Zhang, Hem C. Kandpal, Ingo Opahle, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 80, 094530 (2009) [arXiv:0812.2920].
-
Modeling the single-particle spectral function of TiOCl: Effective models and the importance of inter-chain coupling
M. Aichhorn, T. Saha-Dasgupta, R. Valenti, S. Glawion, M. Sing, R. Claessen
Phys. Rev. B 80, 115129 (2009) [arXiv:0810.2433].
-
Similarities between structural distortions under
pressure and chemical doping in superconducting
BaFe2As2
Simon A. J. Kimber, Andreas Kreyssig, Yuzhong Z. Zhang, Harald O. Jeschke, Roser Valenti,
Fabiano Yokaichiya, Estelle Colombier, Jiaqiang Yan, Thomas C. Hansen, Tapan Chatterji,
Robert J. McQueeney, Paul C. Canfield, Alan I. Goldman and Dimitri N. Argyriou
Nature Materials 8, 471 (2009).
-
Revision of model parameters for kappa-type charge transfer salts: an ab
initio study
Hem C. Kandpal, Ingo Opahle, Yu-Zhong Zhang, Harald O. Jeschke, Roser Valenti
Phys. Rev. Lett. 103, 067004 (2009) [arXiv:0904.0302].
-
Proposed Orbital Ordering in MnV2O4 from First-principles Calculations
S. Sarkar, T. Maitra, Roser Valenti, T. Saha-Dasgupta
Phys. Rev. Lett. 102, 216405 (2009). [arXiv:0903.0254].
-
Electronic structure studies of BaFe2As2 by angle-resolved photoemission spectroscopy
J. Fink, S. Thirupathaiah, R. Ovsyannikov, H.A. Duerr, R. Follath, Y. Huang, S. de Jong, M.S. Golden, Yu-Zhong Zhang, H.O. Jeschke, R. Valenti, C. Felser, S. Dastjani Farahani, M. Rotter, D. Johrendt
Phys. Rev. B, 79 155118 (2009) [arXiv:0903.0967].
-
Effect of dopant atoms on local superexchange in cuprate superconductors:
a perturbative treatment
Kateryna Foyevtsova, Roser Valenti, P. J. Hirschfeld
Phys. Rev. B 79, 144424 (2009) [arXiv:0809.2919].
-
Proximity of LaOFeAs to a magnetic instability
I. Opahle, H. C. Kandpal, Y. Zhang, C. Gros, R. Valenti
Phys. Rev. B 79, 024509 (2009) [arXiv:0808.0834].
-
First principles perspective on the microscopic model for Cs2CuCl4 and Cs2CuBr4
K. Foyevtsova, Y. Zhang, H. O. Jeschke, Roser Valenti
J. of Physics: Conf. Ser. 145, 012038 (2009) [arXiv:0812.2197].
in 2008
-
New structural and magnetic aspects of the nanotube system Na2V3O7
O. Zaharko, J. L. Gavilano, Th. Straessle, C. F. Miclea, A. C. Mota, Y. Filinchuk, D. Chernyshov, P. P. Deen, B. Rahaman, T. Saha-Dasgupta, R. Valenti', Y. Matsushita, A. Doenni, H. Kitazawa
Phys. Rev. B 78, 214426 (2008).
-
Two pressure-induced transitions in TiOCl: Mott insulator to anisotropic metal
Yu-Zhong Zhang, H. O. Jeschke, R. Valenti
Phys. Rev. Lett. 101, 136406 (2008) [arXiv:0809.0145].
-
Microscopic model for transitions from Mott to spin-Peierls insulator in TiOCl
Yu-Zhong Zhang, Harald O. Jeschke, Roser Valenti
Phys. Rev. B 78, 205104 (2008) [arXiv:0804.3342].
-
Proposed low energy model Hamiltonian for spin-gapped system CuTe2O5
Hena Das, T. Saha-Dasgupta, Claudius Gros, Roser Valenti
Phys. Rev. B 77, 224437 (2008) [arXiv:cond-mat/0703675, v2 2008].
-
Tetrahedra system Cu4OCl6daca4: magnetic exchange against molecular vibrations
O. Zaharko, J. Mesot, L. A. Salguero, R. Valenti, M. Zbiri, M. Johnson, Y. Filinchuk, B. Klemke, K. Kiefer, M. Mys'kiv, T. Strassle, H. Mutka
Phys. Rev. B 77, 224408 (2008) [arXiv:0801.1507].
in 2007
-
Microscopic modeling of a spin crossover transition
H. O. Jeschke, L. A. Salguero, B. Rahaman, C. Buchsbaum, V. Pashchenko, M. U. Schmidt, T. Saha-Dasgupta, R. Valenti
New J. Phys. 9, 448 (2007) [arXiv:0711.1053].
-
Density functional study of the electronic and vibrational
properties of TiOCl
L. Pisani, R. Valenti, B. Montanari, N. M. Harrison
Phys. Rev. B 76, 235126 (2007) [arXiv:0710.1230].
-
Cluster dynamical mean-field calculations for TiOCl
T. Saha-Dasgupta, A. Lichtenstein, M. Hoinkis, S. Glawion, M. Sing, R. Claessen, R. Valenti
New. J. Phys. 9 , 380 (2007)
-
Orbital order in ZnV2O4
T. Maitra, R. Valenti
Phys. Rev. Lett. 99 , 126401 (2007)
-
Effects of Two Energy Scales in Weakly Dimerized Antiferromagnetic Quantum Spin Chains
A. Bruehl, B. Wolf, V. Pashchenko, M. Anton, C. Gross, W. Assmus, R. Valenti,
S. Glocke, A. Kluemper, T. Saha-Dasgupta, B. Rahaman, M. Lang
Phys. Rev. Lett. 99 , 057204 (2007)
-
One-dimensional versus two-dimensional correlation effects in the oxyhalides TiOCl and TiOBr
M. Hoinkis, M. Sing, S. Glawion, L. Pisani, R. Valenti, S. van Smaalen, M. Klemm, S. Horn, R. Claessen
Phys. Rev. B 75 , 245124 (2007)
-
Field-induced phase transition in a metalorganic spin-dimer system
a potential model system to study Bose-Einstein condensation of magnons
Y. Tsui, A. Bruehl, K. Removic-Langer, V. Pashchenko, B. Wolf, G. Donath,
A. Pikul, T. Kretz, H.-W. Lerner, M. Wagner, A. Salguero, T. Saha-Dasgupta, B. Rahaman,
R. Valenti, M. Lang
Journal of Magnetism and Magnetic Materials 310 , 1319 (2007)
-
Comparative investigation of the coupled-tetrahedra quantum spin systems
Cu2Te2O5X2, X=Cl, Br and Cu4Te5O12Cl4
R. Valenti, T. Saha-Dasgupta, H.O. Jeschke, B. Rahaman, H. Rosner, P. Lemmens, R. Takagi, M. Johnsson
Physica C 460-462 , 462 (2007)
-
Cu-based organometallic systems: an ab initio study of the electronic
and magnetic properties
L. A. Salguero, H. O. Jeschke, B. Rahaman, T. Saha-Dasgupta, Ch. Buchsbaum, M. U. Schmidt, R. Valenti
New J. Phys. 9 , 26 (2007)
-
Microscopic model for the novel frustrated Cu(II)-spin tetrahedron-based
Cu4Te5O12X4 (X=Cl,Br)
B. Rahaman, H. O. Jeschke, R. Valenti, T. Saha-Dasgupta
Phys. Rev. B 75 , 024404 (2007)
in 2006
-
Comparative investigation of the coupled-tetrahedra quantum spin systems
Cu2Te2O5X2, X=Cl, Br and Cu4Te5O12Cl4
R. Valenti, T. Saha-Dasgupta, H.O. Jeschke, B. Rahaman, H. Rosner, P. Lemmens, R. Takagi, M. Johnsson
Physica C (in press) (2006) [cond-mat/0608635]
-
Effects of Fe substitution on the electronic, transport, and magnetic properties of
ZnGa2O4: A systematic ab-initio study
L. Pisani, T. Maitra, R. Valenti
Phys. Rev. B 73 , 205204 (2006)
-
Classical and ab initio preparation of organometallic model structures
Harald O. Jeschke, L. Andrea Salguero, Roser Valenti, Christian Buchsbaum, Martin U. Schmidt, Matthias Wagner
Comptes Rendus Chimie (in press) [cond-mat/0601010]
in 2005
-
Na2V3O7, a nanotubular system with spin-1/2 diamond rings.
T. Saha-Dasgupta, R. Valenti, F. Capraro, C. Gros
Phys. Rev. Lett 95 , 107201 (2005)
-
Ferromagnetism in Fe-substituted spinel semiconductor ZnGa2O4.
T. Maitra, R. Valenti
J. Phys.: Condens. Matter 17, 7417 (2005)
-
Unusual quasi-one-dimensional electron dispersions in the spin-1/2 quantum magnet TiOCl
M. Hoinkis, M. Sing, J. Schaefer, M. Klemm, S. Horn, H. Benthien, E. Jeckelmann, T. Saha-Dasgupta, L. Pisani,
R. Valenti, R. Claessen
Phys. Rev. B 72 , 125127 (2005)
-
The antiferromagnetic/paramagnetic transition in mixed-spin compounds R2BaNiO5
J.V. Alvarez and R. Valenti
Eur. Phys. J. B 44 , 439-445 (2005)
-
Ab-initio Phonon Calculations for the layered compound TiOCl.
L. Pisani, R. Valenti
Phys. Rev. B (Rapid Comm.) 71 , 180409 (2005)
-
Correlation effects on the electronic structure of TiOCl:
a NMTO+DMFT study.
T. Saha-Dasgupta, A. Lichtenstein, R. Valenti
Phys. Rev. B 71 , 153108 (2005)
-
Spin gap formation in the quantum spin systems TiOX, X=Cl and Br.
P. Lemmens, K.Y. Choi, R. Valenti , T. Saha-Dasgupta, E. Abel, Y.S. Lee, F.C. Chou
New J. Phys. 7 , 74 (2005)
in 2004
-
TiOCl, an orbital-ordered system?
T. Saha-Dasgupta, R. Valenti, H. Rosner, C. Gros
Europhys. Lett. 67, 63 (2004)
-
First principles electronic structure of spinel
LiCr2O4, a possible half-metal?
M. Lauer, R. Valenti, H. C. Kandpal, R. Seshadri
Phys. Rev. B 69, 075117 (2004)
in 2003
- Search for Quantum Criticality in the Spin Tetrahedra System Cu2Te2O5(Br,Cl)2
P.Lemmens, K.-Y. Choi, G. Güntherodt, M. Johnsson, P.Millet, F.Mila, R. Valenti, C.Gros, W. Brenig
Physica B, 329-333, 1049-1050 (2003)
-
Halogen-mediated exchange in the coupled-tetrahedra quantum spin systems Cu2Te2O5X2 (X=Br, Cl)
R. Valenti, T. Saha-Dasgupta, C.Gros, H.Rosner
Phys. Rev. B 67, 245110 (2003)
-
Ab initio investigation of VOSeO3, a spin gap system with coupled spin dimers
R. Valenti, T. Saha-Dasgupta and F. Mila
Phys. Rev B 68, 024411 (2003)
-
Observation of a longitudinal magnon in the tetrahedral quantum spin system Cu2Te2O5Br2
C. Gros, P. Lemmens, M. Vojta, R. Valenti, K.-Y. Choi, H. Kageyama, Z. Hiroi, N.V. Mushinikov, T. Goto, M. Johnsson, P. Millet
Phys. Rev. B 67 , 174405 (2003)
in 2002
-
Comparative Study between two quantum spin systems KCuCl3 and TlCuCl
3
T. Saha-Dasgupta and R. Valenti
Europhys. Lett. 60 (2), 309 (2002)
-
Low energy singlets in the excitation spectrum of the spin tetrahedra
system Cu2Te2O5Br2
P. Lemmens, K. Y. Choi, A. Ionescu, J. Pommer, G. Guentherodt, R. Valenti, C. Gros, W. Brenig, M. Johnsson, P. Millet and F. Mila
Journal of Physics and Chemistry of Solids 63 , 1115 (2002)
-
The nature of the spin-singlet ground state in CaCuGe2O6
R. Valenti, T. Saha-Dasgupta and C. Gros,
Phys. Rev. B 66, 054426 (2002)
-
A microscopic model for a class of mixed-spin quantum antiferromagnets
J.V. Alvarez, Roser Valenti and A. Zheludev,
Phys. Rev. B 65, 184417 (2002)
-
Electronic and magnetic structure of CsV2O5
R. Valenti and T. Saha-Dasgupta,
Phys. Rev. B 65, 144445 (2002)
in 2001
-
Evidence for an unconventional magnetic instability in
the spin-tetrahedra system
Cu2Te2O5Br2
P. Lemmens, K.-Y. Choi, E.E. Kaul, Ch. Geibel, K. Becker, W. Brenig, R. Valenti, C. Gros, M. Johnsson, P. Millet and F. Mila,
Phys. Rev. Lett 86, 5381 (2001)
-
Modeling the electronic behavior of LiV2O5:
a microscopic study
Roser Valenti, T. Saha-Dasgupta, J.V. Alvarez, K. Pozgajcic and Claudius Gros,
Phys. Rev. Lett 87, 227201 (2001)
in 2000
-
Dzyaloshinskii-Moriya interaction in NaV2O5:
a microscopic study
Roser Valenti, Claudius Gros and Wolfram Brenig,
Phys. Rev. B 62, 14 164 (2000)
-
Can a frustrated spin-cluster model describe the low-temperature physics
of NaV2O5?
Claudius Gros, Roser Valenti, J.V. Alvarez, Kay Hamacher and Wolfgang Wenzel,
Phys. Rev. B, 62, R14 617 (2000).
-
A Generalized Ginzburg-Landau Approach to Second Harmonic
Generation
Debanand Sa, R. Valenti and C. Gros,
Euro. Phys. J. B 14, 301 (2000)
- Nonreciprocal Phenomena in Antiferromagnets and
Various Contributions to the Field of Strongly Correlated
Systems.
R. Valenti,
Habilitationsschrift Dortmund (2000).
in 1999
-
Novel Nonreciprocal Acoustic Effects in Antiferromagnets
Roser Valenti, Claudius Gros and V. N. Muthukumar,
Euro. Phys. Lett. 45, 242 (1999)
-
Magnon splitting induced by charge ordering in NaV2O5
Claudius Gros and R. Valenti,
Phys. Rev. Lett. 82, 976 (1999)
in 1997
-
Spin-Peierls vs. Peierls distortions in a family of conjugated Polymers
M.A. Garcia-Bach, R. Valenti and D.J. Klein,
Phys. Rev. B 56, 1751 (1997).
-
Many-Body Valence-Bond Theory
D.J. Klein, H. Zhu, R. Valenti and M.A. Garcia-Bach,
Int. Journal of Quant. Chem. 65, 421 (1997).
-
The J1-J2 model revisited : Phenomenology of
CuGeO3
V.N. Muthukumar, C. Gros, R. Valenti, M. Weiden, C. Geibel, F. Steglich, P. Lemmens, M. Fischer und G. Güntherodt,
Phys. Rev. B 55, 5944 (1997).
in 1996
-
Frustration induced Raman scattering in CuGeO3
V.N. Muthukumar, C. Gros, W. Wenzel, R. Valenti, P. Lemmens, B. Eisener, G. Güuntherodt, M. Weiden, C. Geibel, and F. Steglich,
Phys. Rev. B 54, R9635 (1996).
-
Theory of Non-Reciprocal Optical Effects in Antiferromagnets:
The Case Cr2O3
V.N. Muthukumar, R. Valenti and C. Gros,
Phys. Rev B 54, 433 (1996).
in 1995
-
A Microscopic Model of Non-Reciprocal Optical Effects in
Cr2O3
V.N. Muthukumar, R. Valenti and C. Gros,
Phys. Rev. Lett., 75, 2766 (1995).
in 1994
-
Spin-charge separation at small lengthscales in the 2D t-J model
C. Gros and R. Valenti,
Phys. Rev B 50, 11313 (1994).
-
A self-consistent cluster study of the Emery model
C. Gros and R. Valenti,
Annalen der Physik 3, 460 (1994).
-
The Mott-Hubbard Transition on the infinite-D Bethe Lattice
C. Gros, W. Wenzel, R. Valenti, G. Hülsenbeck and J. Stolze,
Europhys. Lett 27, 299 (1994).
-
Variational wavefunctions for the t-J model
C. Gros and R. Valenti,
Physica C 235-240, 2329 (1994).
in 1993
-
Cluster expansion for the self-energy:
a simple
many-body method for interpreting photoemission
spectra of
correlated Fermi systems
C. Gros and R. Valenti,
Phys. Rev. B 48, 418 (1993).
-
Luttinger-liquid behaviour in 2D: The
variational approach
C. Gros and R. Valenti,
Modern Physics Letters B 7, 119 (1993).
-
Perovskites in High Dimensions: Heavy-Fermion vs.
t-J Fixed Point
R. Valenti and C. Gros,
Z.Phys. B- Condensed Matter 90, 161 (1993).
in 1992
-
Luttinger Liquid Instability of the 2D t-J Model:
A Variational Study
R. Valenti and C. Gros,
Phys. Rev. Lett. 68, 2402 (1992).
in 1991
-
Exact Lower Bounds for the Ground State Energy of Correlated
Fermi Systems
R. Valenti, P.J. Hirschfeld, J. Stolze, C. Gros,
Physica C 185-189, 1685 (1991).
-
Resonating Valence-Bond Theory for Polyenes and
Polyacetylene
M.A. Garcia-Bach, R. Valenti, S.A. Alexander and D.J. Klein,
Croatica Chemica Acta 64, 415 (1991).
Band dedicated to Linus Pauling
-
Rigorous Bounds for Ground State Properties of Correlated
Fermi Systems
R. Valenti, C. Gros, P.J. Hirschfeld and W. Stephan,
Phys. Rev. B 44, 13203 (1991).
-
Rigorous Lower Bounds on the Ground State Energy
of Correlated
Fermi Systems
R. Valenti, P.J. Hirschfeld and J.C. Angles d'Auriac,
Phys. Rev. B 44, 3995 (1991).
-
Lower Bounds for the Ground State Energies
of the
two-dimensional Hubbard and t-J models
R. Valenti, J. Stolze and P.J. Hirschfeld,
Phys. Rev. B 43, 13743, (1991).
-
Topological long-range order for resonating-valence-bond structures
D.J. Klein, T.P. Zivkovic and R. Valenti,
Phys. Rev. B 43, 723, (1991).
-
Resonating Valence-Bond Theory for the square-planar
lattice
D.J. Klein, T.G. Schmalz, M.A. Garcia-Bach, R. Valenti and T.P. Zivkovic,
Phys. Rev. B 43, 719, (1991).
in 1990
-
Exact Lower Bounds to the Ground State of Spin Systems.
The 2D s=1/2 Antiferromagnetic Heisenberg Model
R. Tarrach and R. Valenti,
Phys. Rev. B 41, 9611, (1990).
in 1989
-
Study of Low-Dimensional Strongly Correlated Electron Systems by a Transfer Matrix Technique
R. Valenti,
PhD. Universitat de Barcelona (1989).