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题名: Nonuniform Micromagnetic States in Thin Permalloy Disk
作者: Wei, Zung-Hang;Lai, Mei-Feng;Chang, Ching-Ray;Usov, N. A.;Wu, Jong-Ching;Lai, Jun-Yang
贡献者: 物理學系
关键词: Micromagnetic simulation;Quasiuniform state;Vortex state
日期: 2003-09
上传时间: 2014-06-06T07:18:02Z
出版者: IEEE
摘要: As the diameter of the permalloy thin film becomes larger than some critical size, the quasiuniform state turns out to be unstable and transforms to a new nonuniform state. As the particle's diameter increases, the magnetization curvature increases gradually so that the average magnetization of this new nonuniform state decreases. Finally, when the diameter is larger than another critical size, the new nonuniform state becomes unstable, and a vortex enters the particle. Therefore, the presence of the new nonuniform state plays an intermediate role in the evolution from the quasiuniform state to the vortex state as the diameter increases.
關聯: IEEE Transactions on Magnetics, 39(5): 2675-2677
显示于类别:[物理學系] 期刊論文


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