Magnetic vortex gyration affected by Dzyaloshinskii-Moriya interaction

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

doi:10.1063/1.4919423

Magnetic vortex gyration affected by Dzyaloshinskii-Moriya interaction

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

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

The effect of the Dzyaloshinskii-Moriya interaction (DMI) on magnetic vortex gyration is investigated systematically through micromagnetic simulations. Our results show that the DMI can lift the degeneracy of vortex gyration eigenfrequencies for vortices with left- and right-handedness. For vortex gyration excited by an in-plane AC resonant field, the DMI can strongly influence the gyration amplitude and the critical field for core switching, depending on the sign of the DMI and the vortex handedness. The DMI-induced edge state has a strong effect on the vortex core gyration as the core approaches the disk edge.

Original language	English
Article number	163916
Journal	Journal of Applied Physics
Volume	117
Issue number	16
DOIs	https://doi.org/10.1063/1.4919423
Publication status	Published - 28 Apr 2015

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© 2015 AIP Publishing LLC.

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abstract = "The effect of the Dzyaloshinskii-Moriya interaction (DMI) on magnetic vortex gyration is investigated systematically through micromagnetic simulations. Our results show that the DMI can lift the degeneracy of vortex gyration eigenfrequencies for vortices with left- and right-handedness. For vortex gyration excited by an in-plane AC resonant field, the DMI can strongly influence the gyration amplitude and the critical field for core switching, depending on the sign of the DMI and the vortex handedness. The DMI-induced edge state has a strong effect on the vortex core gyration as the core approaches the disk edge.",

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AU - Won, C.

AU - Wu, Y. Z.

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Magnetic vortex gyration affected by Dzyaloshinskii-Moriya interaction

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