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Aleksandar Razpopov

PhD Candidate in the group of Prof. Dr. Roser Valentí

Goethe University, Frankfurt am Main

ElastoQmat

Welcome

Research

My research interests include:

Publications

    1. Altermagnetic splitting of magnons in hematite (α-Fe2O3)
      Rhea Hoyer, P. Peter Stavropoulos, Aleksandar Razpopov, Roser Valentí, Libor Šmejkal, Alexander Mook
      arXiv:2503.11623 (preprint)
    2. Ab initio study of highly tunable charge transfer in β-RuCl3/graphene heterostructures
      Aleksandar Razpopov and Roser Valentí
      Phys. Rev. Research 6, 043026 (2024)
    3. 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
      Sci Rep 14, 28040 (2024)
    4. Growth of self-integrated atomic quantum wires and junctions of a Mott semiconductor
      Tomoya Asaba, Lang Peng, Takahiro Ono, Satoru Akutagawa, Ibuki Tanaka, Hinako Murayama, Shota Suetsugu, Aleksandar Razpopov, Yuichi Kasahara, Takahito Terashima, Yuhki Kohsaka, Takasada Shibauchi, Masatoshi Ichikawa, Roser Valentí, Shin-ichi Sasa, Yuji Matsuda
      Sci Adv. 9, eabq5561(2023)
    5. 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 Mater. 8, 36 (2023)
    6. Improved effective vertices in the multi-orbital Two-Particle Self-Consistent method from Dynamical Mean-Field Theory
      K. Zantout, S. Backes, A. Razpopov, D. Lessnich, R. Valenti
      Phys. Rev. B 107, 235101 (2023)
    7. 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)
    8. 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, and Roser Valentí
      Phys. Rev. B 106, 035156 (2022)
    9. Multi-Center Magnon Excitations Open the Entire Brillouin Zone to Terahertz Magnetometry of Quantum Magnets
      Tobias Biesner, Seulki Roh, Aleksandar Razpopov, Jannis Willwater, Stefan Süllow, Ying Li, Katharina M. Zoch, Marisa Medarde, Jürgen Nuss, Denis Gorbunov, Yurii Skourski, Andrej Pustogow, Stuart E. Brown, Cornelius Krellner, Roser Valentí, Pascal Puphal, Martin Dressel
      Quantum Magnets. Adv. Quantum Technol., 5 (2022)
    10. 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, and Roser Valentí
      npj Quantum Materials 7, 75 (2022)
    11. Phase diagram of a distorted kagome antiferromagnet and application to Y-kapellasite3
      Max Hering, Francesco Ferrari, Aleksandar Razpopov, Igor I. Mazin, Roser Valenti, Harald O. Jeschke, Johannes Reuther npj Comput. Mater. 8, 10 (2022)
    12. 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)

Teaching

Contact

Address:
Institut für Theoretische Physik
Goethe-Universität Frankfurt
Max-von-Laue-Strasse 1
60438 Frankfurt am Main
Germany

Office: 01.139

Phone: +49-69-798-47825

Fax: +49-69-798-47832

Email: razpopov [at] itp.uni-frankfurt.de