Regensburg 2025 – scientific programme

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MA: Fachverband Magnetismus

MA 8: Spin-Dependent Phenomena in 2D (joint session MA/HL)

MA 8.4: Talk

Monday, March 17, 2025, 15:45–16:00, H19

Ab initio calculation of Spin-Orbit torques in 2D magnets — •Gusthavo Brizolla and Jaroslav Fabian — Institute for Theoretical Physics, University of Regensburg, 93040 Regensburg, Germany

The interplay of spin-orbit coupling and magnetism in two-dimensional materials and their heterostructures presents exciting opportunities for advancing next-generation spintronic devices. In this work, we investigate the role of proximity effects in generating spin-orbit torques (SOTs) in Fe₃GeTe₂ (FGT) and FGT-based van der Waals heterostructures. Using a tight-binding Hamiltonian derived from first-principles calculations via the Wannierization procedure, we evaluate the torkances within the linear response regime using the Kubo formalism. Our results reveal key mechanisms underlying the generation of torques driven by spin accumulation, elucidating the fundamental physics of SOTs in these systems.

This research has been supported by 2D SPIN-TECH.

Keywords: Spin-Orbit Torques; Density Functional Theory; 2D magnets