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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/18518

Title: Nonuniform Micromagnetic States in Thin Circular Dots
Authors: Wei, Zung-Hang;Lai, Mei-Feng;Chang, Ching-Ray;Usov, N. A.;Wu, Jong-Ching;Lai, Jun-Yang
Contributors: 物理學系
Keywords: Micromagnetic simulation;Quasiuniform state;Vortex state
Date: 2004-11
Issue Date: 2014-06-06T07:18:07Z
Publisher: Elsevier
Abstract: 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.
Relation: Journal of Magnetism and Magnetic Materials, 282: 11-14
Appears in Collections:[物理學系] 期刊論文

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