期刊
JOURNAL OF APPLIED PHYSICS
卷 113, 期 13, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4799401
关键词
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资金
- National Research Foundation of Korea
- Korean Government [2012R1A1A2007524]
We demonstrate that a magnetic vortex generated by the Dzyaloshinskii-Moriya interaction is stable state in a spatially confined system. The properties of the locally confined magnetic vortex structure are investigated by performing Monte-Carlo simulations and theoretical calculations. The results reveal the relationship between the confinement size and the magnetic vortex size. We obtain the structural size of the most stable magnetic vortex as well as the critical size above which the magnetic vortex becomes unstable. The field required to flip the vortex core was estimated theoretically and compared with simulation results. The thermal stability of the magnetic vortex is also discussed. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4799401]
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