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.

11 pages, 8 figures

References in corpus (13)

• Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
• Spontaneous Skyrmion Ground States in Magnetic Metals
• A new class of chiral materials hosting magnetic skyrmions beyond room temperature
• Scalar spin chirality and quantum Hall effect on a triangular lattice
• Nanometric square skyrmion lattice in a centrosymmetric tetragonal magnet
• Meron, skyrmion, and vortex crystals in centrosymmetric tetragonal magnets
• Imaging the coupling between itinerant electrons and localised moments in the centrosymmetric skyrmion magnet GdRu2Si2
• Square skyrmion crystal in centrosymmetric itinerant magnets
• Thermodynamically stable skyrmion lattice in tetragonal frustrated antiferromagnet with dipolar interaction
• Noncoplanar multiple-$Q$ spin textures by itinerant frustration: Effects of single-ion anisotropy and bond-dependent anisotropy
• Zoology of multiple-Q spin textures in a centrosymmetric tetragonal magnet with itinerant electrons
• Fermi-surface origin of skyrmion lattices in centrosymmetric rare-earth intermetallics
• Lifshitz Transitions in the Ferromagnetic Superconductor UCoGe

Cited by in corpus (13)

• Stabilization mechanisms of magnetic skyrmion crystal and multiple-$Q$ states based on momentum-resolved spin interactions
• Insight into the electronic structure of the centrosymmetric skyrmion magnet GdRu${}_2$Si${}_2$
• Pseudogap and Fermi arc induced by Fermi surface nesting in a centrosymmetric skyrmion magnet
• Anisotropic skyrmion and multi-$q$ spin dynamics in centrosymmetric Gd${}_2$PdSi${}_3$
• The Fermi surface of RuO2 measured by quantum oscillations
• Magnetic bubble crystal in tetragonal magnets
• Anisotropic skyrmion crystal on a centrosymmetric square lattice under an in-plane magnetic field
• Chern insulating state with double-$Q$ ordering wave vectors at the Brillouin zone boundary
• A Magnon Band Analysis of GdRu2Si2 in the Field-Polarized State
• Three-sublattice antiferro-type and ferri-type skyrmion crystals in centrosymmetric magnets
• Double-$Q$ and quadruple-$Q$ instabilities at low-symmetric ordering wave vectors under tetragonal symmetry
• Image of helical local moment magnetic order in the STM spectrum
• Field-tunable quadruple-$Q$ states driven by momentum-space frustration