Journal Article

FZJ-2018-05701

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Modification of Dzyaloshinskii-Moriya-Interaction-Stabilized Domain Wall Chirality by Driving Currents

Karnad, G. V. ; Freimuth, F.FZJ* ; Martinez, E. ; Lo Conte, R. ; Gubbiotti, G. ; Schulz, T. ; Senz, S. ; Ocker, B. ; Mokrousov, Y. (Corresponding author)FZJ* ; Kläui, M.

2018
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/19755  doi:10.1103/PhysRevLett.121.147203

Abstract: We measure and analyze the chirality of Dzyaloshinskii-Moriya-interaction (DMI) stabilized spin textures in multilayers of Ta|Co20F60B20|MgO. The effective DMI is measured experimentally using domain wall motion measurements, both in the presence (using spin-orbit torques) and absence of driving currents (using magnetic fields). We observe that the current-induced domain wall motion yields a change in effective DMI magnitude and opposite domain wall chirality when compared to field-induced domain wall motion (without current). We explore this effect, which we refer to as current-induced DMI, by providing possible explanations for its emergence, and explore the possibility of its manifestation in the framework of recent theoretical predictions of DMI modifications due to spin currents.

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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. 142 - Controlling Spin-Based Phenomena (POF3-142) (POF3-142)
2. Topological transport in real materials from ab initio (jiff40_20090701) (jiff40_20090701)
3. Magnetic Anisotropy of Metallic Layered Systems and Nanostructures (jiff13_20131101) (jiff13_20131101)
4. Topological transport in real materials from ab initio (jara0062_20130501) (jara0062_20130501)

Appears in the scientific report 2018

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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