Journal Article

FZJ-2023-02277

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Current-driven writing process in antiferromagnetic Mn2Au for memory applications

Reimers, S. ; Lytvynenko, Y. ; Niu, Y. R. ; Golias, E. ; Sarpi, B. ; Veiga, L. S. I. ; Denneulin, T.FZJ* ; Kovács, A.FZJ* ; Dunin-Borkowski, R. E.FZJ* ; Bläßer, J. ; Kläui, M. ; Jourdan, M. (Corresponding author)

2023
Nature Publishing Group UK [London]

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Please use a persistent id in citations: http://hdl.handle.net/2128/34533  doi:10.1038/s41467-023-37569-8

Abstract: Current pulse driven Néel vector rotation in metallic antiferromagnets is one of the most promising concepts in antiferromagnetic spintronics. We show microscopically that the Néel vector of epitaxial thin films of the prototypical compound Mn2Au can be reoriented reversibly in the complete area of cross shaped device structures using single current pulses. The resulting domain pattern with aligned staggered magnetization is long term stable enabling memory applications. We achieve this switching with low heating of ≈20 K, which is promising regarding fast and efficient devices without the need for thermal activation. Current polarity dependent reversible domain wall motion demonstrates a Néel spin-orbit torque acting on the domain walls.

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Contributing Institute(s):

1. Physik Nanoskaliger Systeme (ER-C-1)

Research Program(s):

1. 5351 - Platform for Correlative, In Situ and Operando Characterization (POF4-535) (POF4-535)
2. 3D MAGiC - Three-dimensional magnetization textures: Discovery and control on the nanoscale (856538) (856538)
3. DFG project 268565370 - TRR 173: Spin+X: Der Spin in seiner kollektiven Umgebung (268565370) (268565370)

Appears in the scientific report 2023

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