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NCUEIR > College of Science > Department of Physics > Periodical Articles > Item 987654321/18532

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/18532

Title:	The Irreversible Magnetization Process in Microstructured Permalloy Ellipses
Authors:	Chang, Y. C.;Chang, C. C.;Wu, Jong-Ching
Contributors:	物理學系
Keywords:	Magnetic force microscopy (MFM);Magnetization switching;Magnetoresistance;Permalloy
Date:	2005-10
Issue Date:	2014-06-06T07:18:28Z
Publisher:	IEEE
Abstract:	Microstructured permalloy ellipses have been fabricated using electron-beam lithography through a lift-off process. The investigations were focused on the magnetization configurations and switching processes adopting magnetic force microscopy (MFM) and magnetoresistance (MR) measurements. An original five-vortex domain configuration of ellipse can be controlled and manipulated to become a four-vortex domain configuration by tuning the external magnetic field applied along the short-axis direction. In addition, an asymmetrical reversal process can be demonstrated on an ellipse having two- or three-vortex domain configuration, in which the switching fields are 36 Oe and 24 Oe, respectively.
Relation:	IEEE Transactions on Magnetics, 41(10): 3742-3744
Appears in Collections:	[Department of Physics] Periodical Articles

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