Journal Article

FZJ-2023-03685

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Noncollinear Spin Current for Switching of Chiral Magnetic Textures

Go, D. (Corresponding author)FZJ* ; Sallermann, M.FZJ* ; Lux, F. R. ; Blügel, S.FZJ* ; Gomonay, O. ; Mokrousov, Y. (Corresponding author)FZJ*

2022
APS College Park, Md.

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Please use a persistent id in citations: doi:10.1103/PhysRevLett.129.097204  doi:10.34734/FZJ-2023-03685

Abstract: We propose a concept of noncollinear spin current, whose spin polarization varies in space even innonmagnetic crystals. While it is commonly assumed that the spin polarization of the spin Hall current isuniform, asymmetric local crystal potential generally allows the spin polarization to be noncollinear inspace. Based on microscopic considerations, we demonstrate that such noncollinear spin Hall currents canbe observed, for example, in layered Kagome Mn3X (X ¼ Ge, Sn) compounds. Moreover, by referring toatomistic spin dynamics simulations we show that noncollinear spin currents can be used to switch thechiral spin texture of Mn3X in a deterministic way even in the absence of an external magnetic field. Ourtheoretical prediction can be readily tested in experiments, which will open a novel route toward electriccontrol of complex spin structures in noncollinear antiferromagnets.

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Contributing Institute(s):

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

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)
2. DFG project 437337265 - Spin+Optik: Theoretischer Entwurf von antiferromagnetischer Optospintronik (A11) (437337265) (437337265)
3. DFG project 444844585 - Statische und dynamische Kopplung von Gitter- und elektronischen Freiheitsgraden in magnetisch geordneten Übergangsmetalldichalkogenieden (B06) (444844585) (444844585)
4. SFB 1238 C01 - Strukturinversionsasymmetrische Materie und Spin-Orbit-Phänomene mittels ab initio (C01) (319898210) (319898210)
5. DFG project 403503315 - Grenzflächenstabilisierte Skyrmionen in Oxidstrukturen für die Skyrmionik (403503315) (403503315)

Appears in the scientific report 2023

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Database coverage:
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