Journal Article

FZJ-2022-04442

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Hidden interplay of current-induced spin and orbital torques in bulk Fe 3 GeTe 2

Saunderson, T. G. (Corresponding author)FZJ* ; Go, D.FZJ* ; Blügel, S.FZJ* ; Kläui, M. ; Mokrousov, Y.FZJ*

2022
APS College Park, MD

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Please use a persistent id in citations: http://hdl.handle.net/2128/32444  doi:10.1103/PhysRevResearch.4.L042022

Abstract: Low crystal symmetry of magnetic van der Waals materials naturally promotes spin-orbital complexityunachievable in common magnetic materials used for spin-orbit torque switching. Here, using first-principlesmethods, we demonstrate that an interplay of spin and orbital degrees of freedom has a profound impact onspin-orbit torques in the prototypical van der Waals ferromagnet Fe 3 GeTe 2 . While we show that bulk Fe 3 GeTe 2hosts strong “hidden” current-induced torques harvested by each of its layers, we uncover that their originalternates between the conventional spin flux torque and the so-called orbital torque as the magnetizationdirection is varied. A drastic difference in the behavior of the two types of torques results in a nontrivial evolutionof switching properties with doping. Our findings promote the design of nonequilibrium orbital properties as theguiding mechanism for crafting the properties of spin-orbit torques in layered van der Waals materials.

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (IAS-1)
2. Quanten-Theorie der Materialien (PGI-1)
3. JARA-FIT (JARA-FIT)
4. JARA - HPC (JARA-HPC)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)

Appears in the scientific report 2022

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Database coverage:
; ; ; ; Clarivate Analytics Master Journal List ; DOAJ Seal ; Emerging Sources Citation Index ; SCOPUS ; Web of Science Core Collection

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