National Changhua University of Education Institutional Repository : Item 987654321/18518
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题名: Nonuniform Micromagnetic States in Thin Circular Dots
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: 2004-11
上传时间: 2014-06-06T07:18:07Z
出版者: Elsevier
摘要: Micromagnetic states are strongly related to sizes of nano-dots. The quasiuniform state becomes unstable and transforms to a new nonuniform state as the diameter of the permalloy circular dot exceeds some critical size. The magnetization curvature increases gradually as the diameter increases. Finally, when the diameter is larger than another critical size, the new nonuniform state becomes unstable and a vortex enters the particle. Hence 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: Journal of Magnetism and Magnetic Materials, 282: 11-14
显示于类别:[物理學系] 期刊論文

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