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MA: Fachverband Magnetismus

MA 7: Poster Magnetism I

MA 7.45: Poster

Montag, 9. März 2026, 09:30–12:30, P2

Ferroelectric-controllable spin-orbit torque in two-dimensional magnetic heterostructures — •Weiyi Pan, Gusthavo Brizolla, and Jaroslav Fabian — Institute for Theoretical Physics, University of Regensburg, 93040 Regensburg, Germany

The spin-orbit torque (SOT) in two-dimensional (2D) van der Waals magnets plays a crucial role in next-generation spintronic devices. However, achieving nonvolatile control of SOT in 2D systems remains challenging. In this work, we theoretically demonstrate that placing Fe₃GeTe₂, a promising 2D magnet exhibiting experimentally observable SOT effects, on a ferroelectric In₂Se₃ substrate, enables nonvolatile manipulation of the SOT through ferroelectric polarization reversal. Further analysis reveals that the polarization switching mainly affect the intra-band contribution to the SOT. Our results provide an effective strategy for controlling SOT in realistic 2D heterostructures, paving the way for tunable and energy-efficient spintronic devices in the future. This research has been supported by 2D SPIN-TECH.

Keywords: Spin-Orbit Torques; Ferroelectric control; Two-dimensional magnets; First-principles calculations