Quantum oscillations in a centrosymmetric skyrmion-hosting magnet GdRu2Si2
| Autor: | Matsuyama, N., Nomura, T., Imajo, S., Nomoto, T., Arita, R., Sudo, K., Kimata, M., Khanh, N. D., Takagi, R., Tokura, Y., Seki, S., Kindo, K., Kohama, Y. |
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| Rok vydání: | 2022 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.107.104421 |
| Popis: | We have performed magnetic torque and resistivity measurements on a centrosymmetric skyrmion-host GdRu2Si2, in which the dominant magnetic interaction leading to skyrmion formation is under debate. We observe both the de Haas-van Alphen and Shubnikov-de Haas oscillations in the forced ferromagnetic phase. The angular dependence of the quantum oscillation frequencies can be reproduced by the ab-initio calculation. The de Haas-van Alphen oscillation is also observed in the double-Q phase with a different frequency to that in the forced ferromagnetic phase, indicating a Fermi surface reconstruction due to the coupling between localized spins and conduction electrons. Based on these experimental findings, the magnetic interactions in this system are discussed. Comment: 11 pages, 8 figures |
| Databáze: | arXiv |
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