Insight into the electronic structure of the centrosymmetric skyrmion magnet GdRu₂Si₂.

ABSTRACT: The discovery of a square magnetic-skyrmion lattice in GdRu₂Si₂, with the smallest so far found skyrmion size and without a geometrically frustrated lattice, has attracted significant attention. In this work, we present a comprehensive study of surface and bulk electronic structures of GdRu₂Si₂ by utilizing momentum-resolved photoemission (ARPES) measurements and first-principles calculations. We show how the electronic structure evolves during the antiferromagnetic transition when a peculiar helical order of 4f magnetic moments within the Gd layers sets in. A nice agreement of the ARPES-derived electronic structure with the calculated one has allowed us to characterize the features of the Fermi surface (FS), unveil the nested region along k</

SUBMITTER: Eremeev SV 

PROVIDER: S-EPMC10662135 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature