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MA: Fachverband Magnetismus

MA 16: Skyrmions I

MA 16.7: Vortrag

Dienstag, 10. März 2026, 11:15–11:30, HSZ/0004

Ab inito quantum transport for sub-10 nm skyrmions in 2D magnets — •Moritz A. Goerzen, Salomé Trillot, and Dongzhe Li — CEMES, Université de Toulouse, CNRS, France

Topological spin textures, such as magnetic skyrmions, play a central role in modern magnetism and have attracted significant interest in both fundamental studies and spintronics applications. Ab initio theory can provide a direct connection to experiments, giving access to the material-dependent physics behind the observed effects. However, the high computational cost makes it difficult to model chiral skyrmions, which typically span several nanometers and arise from competing magnetic interactions. Here, we present a novel workflow capable of treating the electronic structure and transport properties of sub-10 nm skyrmions at the full ab initio level. We then apply this technique to investigate the electrical detection and chirality-induced orbitronics effects in 2D magnets. In particular, we demonstrate how non-collinear magnetoresistance, chirality-induced orbital moments, and orbital Hall effects evolve with skyrmion size, helicity, and spin-orbit coupling.

Keywords: Ab initio; Skyrmions; 2D magnets; quantum transport; orbital Hall effect