Authors:	Saunderson, Tom G. Go, Dongwook Blügel, Stefan Kläui, Mathias Mokrousov, Yuriy
Title:	Hidden interplay of current-induced spin and orbital torques in bulk Fe3GeTe2
Online publication date:	8-Feb-2023
Year of first publication:	2022
Language:	english
Abstract:	Low crystal symmetry of magnetic van der Waals materials naturally promotes spin-orbital complexity unachievable in common magnetic materials used for spin-orbit torque switching. Here, using first-principles methods, we demonstrate that an interplay of spin and orbital degrees of freedom has a profound impact on spin-orbit torques in the prototypical van der Waals ferromagnet Fe3GeTe2. While we show that bulk Fe3GeTe2 hosts strong "hidden" current-induced torques harvested by each of its layers, we uncover that their origin alternates between the conventional spin flux torque and the so-called orbital torque as the magnetization direction is varied. A drastic difference in the behavior of the two types of torques results in a nontrivial evolution of switching properties with doping. Our findings promote the design of nonequilibrium orbital properties as the guiding mechanism for crafting the properties of spin-orbit torques in layered van der Waals materials.
DDC:	530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-8706
Version:	Published version
Publication type:	Zeitschriftenaufsatz
Document type specification:	Scientific article
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/4.0/
Journal:	Physical review research 4 4
Pages or article number:	L042022
Publisher:	American Physical Society
Publisher place:	College Park, Md.
Issue date:	2022
ISSN:	2643-1564
Publisher DOI:	10.1103/PhysRevResearch.4.L042022
Appears in collections:	JGU-Publikationen