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题名: Size Dependence of Switching Fields of Permalloy Rings
作者: Lai, Mei-Feng;Wei, Zung-Hang;Wu, Jong-Ching;Chang, C. C.;Chang, Ching-Ray;Lai, Jun-Yang
贡献者: 物理學系
日期: 2005
上传时间: 2014-06-06T07:18:29Z
出版者: American Institute of Physics
摘要: The size dependence of switching fields of permalloy rings is studied by micromagnetic simulations and by magnetoresistance measurements. Experimentally, the switching fields can be obtained from the discontinuities of the magnetoresistance curve. From the simulated hysteresis loops and the magnetoresistance curves obtained by experiment it is shown that the switching field from the vortex state to the reverse onion state increases considerably as decreasing of the lateral size or as increasing of the thickness. There is, however, no significant correlation between the ring size and the switching field from the onion state to the vortex state.
關聯: Journal of Applied Physics, 97(10): 10J711
显示于类别:[物理學系] 期刊論文

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