Journal Article

FZJ-2021-04941

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Geometry and symmetry in skyrmion dynamics

Kuchkin, V. (Corresponding author)FZJ* ; Chichay, K. ; Barton-Singer, B. ; Rybakov, F. N. ; Blügel, S.FZJ* ; Schroers, B. J. ; Kiselev, N. S.FZJ*

2021
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/29336  doi:10.1103/PhysRevB.104.165116

Abstract: The uniform motion of chiral magnetic skyrmions induced by a spin-transfer torque displays an intricate dependence on the skyrmions' topological charge and shape. We reveal surprising patterns in this dependence through simulations of the Landau-Lifshitz-Gilbert equation with Zhang-Li torque and explain them through a geometric analysis of Thiele's equation. Our results provide a universal geometrical understanding of the dependence of the skyrmion's velocity and Hall angle on the skyrmion's topological charge, shape, and orientation. The generality of our approach suggests the validity of our results for exchange-frustrated magnets, bubble materials, and other materials.

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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. 5211 - Topological Matter (POF4-521) (POF4-521)

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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