@article{MTMT:34823661, title = {Terahertz spin-wave excitations in the transverse conical phase of BiFeO3}, url = {https://m2.mtmt.hu/api/publication/34823661}, author = {Tóth, Boglárka and Farkas, Dániel Gergely and Amelin, K. and Rõõm, T. and Nagel, U. and Udvardi, László and Szunyogh, László and Rózsa, Levente and Ito, T. and Bordács, Sándor}, doi = {10.1103/PhysRevB.109.144424}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {109}, unique-id = {34823661}, issn = {2469-9950}, year = {2024}, eissn = {2469-9969}, orcid-numbers = {Amelin, K./0000-0003-4106-5006; Szunyogh, László/0000-0001-7430-3627; Rózsa, Levente/0000-0001-9456-5755; Ito, T./0000-0003-2094-2807; Bordács, Sándor/0000-0003-0420-5997} } @article{MTMT:34749006, title = {Chemical potential of magnetic skyrmion quasiparticles in heavy-metal/iron bilayers}, url = {https://m2.mtmt.hu/api/publication/34749006}, author = {Nagyfalusi, Balázs and Udvardi, László and Szunyogh, László and Rózsa, Levente}, doi = {10.1103/PhysRevB.109.094418}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {109}, unique-id = {34749006}, issn = {2469-9950}, year = {2024}, eissn = {2469-9969}, orcid-numbers = {Rózsa, Levente/0000-0001-9456-5755} } @article{MTMT:34675872, title = {Two levels of topology in skyrmion lattice dynamics}, url = {https://m2.mtmt.hu/api/publication/34675872}, author = {Schick, D and Weissenhofer, M and Rózsa, Levente and Rothörl, J and Virnau, P and Nowak, U}, doi = {10.1103/PhysRevResearch.6.013097}, journal-iso = {PRRESEARCH}, journal = {PHYSICAL REVIEW RESEARCH}, volume = {6}, unique-id = {34675872}, year = {2024}, eissn = {2643-1564}, orcid-numbers = {Rózsa, Levente/0000-0001-9456-5755} } @article{MTMT:34406969, title = {Magnetic bound states of iron clusters on a superconductor}, url = {https://m2.mtmt.hu/api/publication/34406969}, author = {Amann, S. and Kucska, Nóra Petra and Lászlóffy, András and Néel, N. and Ujfalussy, Balázs and Rózsa, Levente and Palotás, Krisztián and Kröger, J.}, doi = {10.1103/PhysRevB.108.195403}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {108}, unique-id = {34406969}, issn = {2469-9950}, year = {2023}, eissn = {2469-9969}, orcid-numbers = {Rózsa, Levente/0000-0001-9456-5755; Palotás, Krisztián/0000-0002-1914-2901} } @article{MTMT:34400250, title = {Magnon squeezing in conical spin spirals}, url = {https://m2.mtmt.hu/api/publication/34400250}, author = {Wuhrer, D. and Rózsa, Levente and Nowak, U. and Belzig, W.}, doi = {10.1103/PhysRevResearch.5.043124}, journal-iso = {PRRESEARCH}, journal = {PHYSICAL REVIEW RESEARCH}, volume = {5}, unique-id = {34400250}, year = {2023}, eissn = {2643-1564}, orcid-numbers = {Rózsa, Levente/0000-0001-9456-5755} } @article{MTMT:34069738, title = {Temperature dependence of spin-model parameters in antiferromagnets}, url = {https://m2.mtmt.hu/api/publication/34069738}, author = {Rózsa, Levente and Atxitia, U.}, doi = {10.1103/PhysRevResearch.5.023139}, journal-iso = {PRRESEARCH}, journal = {PHYSICAL REVIEW RESEARCH}, volume = {5}, unique-id = {34069738}, year = {2023}, eissn = {2643-1564}, orcid-numbers = {Rózsa, Levente/0000-0001-9456-5755} } @article{MTMT:34045492, title = {Inertial effects in ultrafast spin dynamics}, url = {https://m2.mtmt.hu/api/publication/34045492}, author = {Mondal, R. and Rózsa, Levente and Farle, M. and Oppeneer, P.M. and Nowak, U. and Cherkasskii, M.}, doi = {10.1016/j.jmmm.2023.170830}, journal-iso = {J MAGN MAGN MATER}, journal = {JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS}, volume = {579}, unique-id = {34045492}, issn = {0304-8853}, year = {2023}, eissn = {1873-4766}, orcid-numbers = {Rózsa, Levente/0000-0001-9456-5755} } @article{MTMT:34029429, title = {Nanoméretű mágneses szerkezetek topológiája}, url = {https://m2.mtmt.hu/api/publication/34029429}, author = {Rózsa, Levente and Palotás, Krisztián}, journal-iso = {FIZIKAI SZEMLE}, journal = {FIZIKAI SZEMLE}, volume = {73}, unique-id = {34029429}, issn = {0015-3257}, year = {2023}, pages = {114-120}, orcid-numbers = {Rózsa, Levente/0000-0001-9456-5755; Palotás, Krisztián/0000-0002-1914-2901} } @article{MTMT:34011109, title = {Magnetic properties of hematite revealed by an ab initio parameterized spin model}, url = {https://m2.mtmt.hu/api/publication/34011109}, author = {Dannegger, Tobias and Deák, András and Rózsa, Levente and Galindez-Ruales, E. and Das, Shubhankar and Baek, Eunchong and Klaeui, Mathias and Szunyogh, László and Nowak, Ulrich}, doi = {10.1103/PhysRevB.107.184426}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {107}, unique-id = {34011109}, issn = {2469-9950}, abstract = {Hematite is a canted antiferromagnetic insulator, promising for applications in spintronics. Here we present ab initio calculations of the tensorial exchange interactions of hematite and use them to understand its magnetic properties by parametrizing a semiclassical Heisenberg spin model. Using atomistic spin dynamics simulations, we calculate the equilibrium properties and phase transitions of hematite, most notably the Morin transition. The computed isotropic and Dzyaloshinskii-Moriya interactions result in a Neel temperature and weak ferromagnetic canting angle that are in good agreement with experimental measurements. Our simulations show how dipoledipole interactions act in a delicate balance with first and higher-order on-site anisotropies to determine the material's magnetic phase. Comparison with spin-Hall magnetoresistance measurements on a hematite single crystal reveals deviations of the critical behavior at low temperatures. Based on a mean-field model, we argue that these differences result from the quantum nature of the fluctuations that drive the phase transitions.}, keywords = {neutron-diffraction; WEAK FERROMAGNETISM; Materials Science, Multidisciplinary; Physics, Applied; BASAL-PLANE}, year = {2023}, eissn = {2469-9969}, orcid-numbers = {Deák, András/0000-0002-3210-2947; Rózsa, Levente/0000-0001-9456-5755} } @article{MTMT:33887288, title = {Search for large topological gaps in atomic spin chains on proximitized superconducting heavy-metal layers}, url = {https://m2.mtmt.hu/api/publication/33887288}, author = {Beck, P. and Nyári, Bendegúz Tamás and Schneider, L. and Rózsa, Levente and Lászlóffy, András and Palotás, Krisztián and Szunyogh, László and Ujfalussy, Balázs and Wiebe, J. and Wiesendanger, R.}, doi = {10.1038/s42005-023-01196-y}, journal-iso = {COMM PHYS}, journal = {COMMUNICATIONS PHYSICS}, volume = {6}, unique-id = {33887288}, issn = {2399-3650}, year = {2023}, eissn = {2399-3650}, orcid-numbers = {Nyári, Bendegúz Tamás/0000-0001-5524-9995; Rózsa, Levente/0000-0001-9456-5755; Palotás, Krisztián/0000-0002-1914-2901} }