Quantum oscillations in a centrosymmetric skyrmion-hosting magnet GdRu2Si2
Abstract
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.
Keywords
Cite
@article{arxiv.2212.12280,
title = {Quantum oscillations in a centrosymmetric skyrmion-hosting magnet GdRu2Si2},
author = {N. Matsuyama and T. Nomura and S. Imajo and T. Nomoto and R. Arita and K. Sudo and M. Kimata and N. D. Khanh and R. Takagi and Y. Tokura and S. Seki and K. Kindo and Y. Kohama},
journal= {arXiv preprint arXiv:2212.12280},
year = {2023}
}
Comments
11 pages, 8 figures