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题名: Influence of Asymmetric Disks on Control over the Existence of Vortex in Submicrometer-scaled Permalloy Disks
作者: Huang, Chao-Hsien;Wu, Kuo-Ming;Wang, Chih-Yi;Wu, Jong-Ching;Horng, Lance
贡献者: 物理學系
日期: 2011
上传时间: 2014-06-06T07:20:00Z
出版者: American Institute of Physics
摘要: The influence of the degree of asymmetry of a Py disk in a vortex configuration by changing an excised angle is studied in this paper. Samples of 40 nm thick NiFe disk arrays, with excised angles varying from 15� to 90� and diameters of 800, 500, and 300 nm, were investigated to observe the dependence of vortex nucleation and annihilation fields on the asymmetry and dimensions. Linear relations of vortex nucleation and annihilation fields to aspect ratio were found, and are useful mainly for controlling the nucleation and annihilation fields. Relationships between the vortex existence field and the aspect ratio, a thickness and diameter were found, and these should be taken into account when designing single vortex element applications.
關聯: Journal of Applied Physics, 109(7): 07B913
显示于类别:[物理學系] 期刊論文

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