Dzyaloshinskii-Moriya相互作用对磁涡旋的影响

2015 IEEE Magnetics Conference (INTERMAG) Pub Date : 2015-07-16 DOI:10.1109/INTMAG.2015.7156919

Y. Luo, C. Zhou, Y. Wu

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引用次数: 0

摘要

利用微磁模拟技术研究Dzyaloshinskii-Moriya相互作用(DMI)对涡旋动力学的影响。研究发现，DMI可以在磁芯上产生局域偏置场，使磁芯边缘的自旋发生倾斜，并对涡旋磁芯开关产生显著影响。结果表明，DMI可以诱导涡旋核的大振幅和高稳定性旋转，可用于提高涡旋基纳米振荡器的发射功率。

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Effects of Dzyaloshinskii-Moriya interaction on magnetic vortex gyration

This study aims to investigate the effects of Dzyaloshinskii-Moriya interaction (DMI) on vortex dynamics using micromagnetic simulation. It is found that the DMI can induce a localized bias field on the core, tilt the spin at the disk edge, and significantly affects vortex core switching. The results demonstrate that the DMI can induce the vortex core gyration with large amplitude and high stability, which may be utilized to improve the emission power of vortex based nano-oscillators.

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2015 IEEE Magnetics Conference (INTERMAG)

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