Journal Article

FZJ-2024-02846

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Controlling the Interlayer Dzyaloshinskii–Moriya Interaction by Electrical Currents

Kammerbauer, F. ; Choi, W.-Y. ; Freimuth, F.FZJ* ; Lee, K. ; Frömter, R. ; Han, D.-S. ; Lavrijsen, R. ; Swagten, H. J. M. ; Mokrousov, Y.FZJ* ; Kläui, M. (Corresponding author)

2023
ACS Publ. Washington, DC

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Please use a persistent id in citations: doi:10.1021/acs.nanolett.3c01709

Abstract: The recently discovered interlayer Dzyaloshinskii–Moriya interaction (IL-DMI) in multilayers with perpendicular magnetic anisotropy favors canting of spins in the in-plane direction. It could thus stabilize intriguing spin textures such as Hopfions. A key requirement for nucleation is to control the IL-DMI. Therefore, we investigate the influence of an electric current on a synthetic antiferromagnet with growth-induced IL-DMI. The IL-DMI is quantified by using out-of-plane hysteresis loops of the anomalous Hall effect while applying a static in-plane magnetic field at varied azimuthal angles. We observe a shift in the azimuthal dependence with an increasing current, which we conclude to originate from the additional in-plane symmetry breaking introduced by the current flow. Fitting the angular dependence, we demonstrate the presence of an additive current-induced term that linearly increases the IL-DMI in the direction of current flow. This opens the possibility of easily manipulating 3D spin textures by currents.

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (PGI-1)
2. Quanten-Theorie der Materialien (IAS-1)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)
2. DFG project 290319996 - Spin+Bahn-Wechselwirkung: Orbitronik und Spin-Bahn Effekte (A01) (290319996) (290319996)
3. DFG project 290396061 - Spin+Strom: Drehimpulstransport durch Magnonen, Spins und Orbits (B02) (290396061) (290396061)
4. DFG project 403502522 - Thermisch aktivierte Skyrmionen: von der individuellen zur kollektiven Dynamik (403502522) (403502522)
5. DFG project 444844585 - Statische und dynamische Kopplung von Gitter- und elektronischen Freiheitsgraden in magnetisch geordneten Übergangsmetalldichalkogenieden (B06) (444844585) (444844585)
6. DFG project 437337265 - Spin+AFM-Dynamik: Antiferromagnetismus durch Drehimpulsströme und Gitterdynamik (A11) (437337265) (437337265)
7. 3D MAGiC - Three-dimensional magnetization textures: Discovery and control on the nanoscale (856538) (856538)
8. DFG project 448880005 - Ab-Initio Entdeckung topologischer magnetischer Hochtemperaturmaterialien (448880005) (448880005)

Appears in the scientific report 2024

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 10 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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