Effect of Dzyaloshinskii–Moriya interaction on magnetic vortex
Effect of Dzyaloshinskii–Moriya interaction on magnetic vortex
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DOI：
10.1063/1.4874135
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发表时间：
2014-01
期刊：
影响因子：
1.6
通讯作者：
Y. Luo;C. Zhou;C. Won;Y. Wu
中科院分区：
文献类型：
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作者：
Y. Luo;C. Zhou;C. Won;Y. Wu
采用基于Landau-Lifshitz-Gilbert方程的微磁模拟方法，研究了Dzyaloshinskii-Moriya(DM)相互作用对磁性微盘涡旋的影响。我们的结果表明，DM相互作用改变了涡旋核的大小，并在盘的边缘和内部诱导了一个面外磁化分量。DM相互作用可以破坏旋涡的一只手的稳定性，对涡核产生偏置场，并耦合旋涡的极性和手性。这种由DM相互作用引起的耦合可以为控制旋涡的极性和手性提供一种新的方法。
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.