Effect of Dzyaloshinskii–Moriya interaction on magnetic vortex

Y. M. Luo; C. Zhou; C. Won; Y. Z. Wu

doi:10.1063/1.4874135

AIP Advances (Apr 2014)

Effect of Dzyaloshinskii–Moriya interaction on magnetic vortex

Y. M. Luo,
C. Zhou,
C. Won,
Y. Z. Wu

Affiliations

Y. M. Luo: State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
C. Zhou: State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China
C. Won: Department of Physics, Kyung Hee University, Seoul 130-701, Korea
Y. Z. Wu: State Key Laboratory of Surface Physics, Department of Physics, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China

DOI: https://doi.org/10.1063/1.4874135
Journal volume & issue: Vol. 4, no. 4
pp. 047136 – 047136-10

Abstract

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The effect of the Dzyaloshinskii–Moriya (DM) interaction on the vortex in magnetic microdisk was investigated by micro-magnetic simulation based on the Landau–Lifshitz–Gilbert equation. Our results show that the DM interaction modifies the size of the vortex core, and also induces an out-of-plane magnetization component at the edge and inside the disk. The DM interaction can destabilizes one vortex handedness, generate a bias field to the vortex core and couple the vortex polarity and chirality. This DM-interaction-induced coupling can therefore provide a new way to control vortex polarity and chirality.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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