Prediction of topological Hall effect in a driven magnetic domain wall

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We investigate the possible emergence of topological Hall effect (THE) in a driven magnetic domain wall (DW). Numerical simulations based on the Landau-Lifshitz-Gilbert-Slonczewski equation shows that the emergent magnetic flux appears when the DW is in a non-equilibrium state. The magnitude of magnetic flux is modulated by the Dzyaloshinskii-Moriya interaction (DMI), providing an experimental test of the predicted THE by a voltage controlled DMI modulation. These results indicate that the THE can be observed even in a topologically trivial magnetic DW, and therefore open up new possibility to electrically detect the dynamical spin structure. (C) 2019 The Japan Society of Applied Physics
Publisher
IOP PUBLISHING LTD
Issue Date
2019-05
Language
English
Article Type
Article
Citation

APPLIED PHYSICS EXPRESS, v.12, no.5, pp.053006

ISSN
1882-0778
DOI
10.7567/1882-0786/ab1801
URI
http://hdl.handle.net/10203/262094
Appears in Collection
PH-Journal Papers(저널논문)
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