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NCUEIR > College of Science > Department of Physics > Periodical Articles > Item 987654321/18555

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/18555

Title:	Short-circuiting Effect on the Magnetoresistance of Microstructured Permalloy Rings
Authors:	Chao, C. T.;Lin, L. K.;Wu, Jong-Ching;Wei, Zung-Hang;Lai, Mei-Feng;Chang, Ching-Ray
Contributors:	物理學系
Keywords:	Permalloy ring;Magnetoresistance;Domain wall;Vortex
Date:	2007-03
Issue Date:	2014-06-06T07:18:45Z
Publisher:	Elsevier
Abstract:	We present a systematic investigation of the current/voltage lead effect on magnetization reversal of microstructured permalloy rings. The magnetic rings with film thickness of 23 nm and outer/inner diameter of 5/3 μm, respectively, were patched by nonmagnetic gold leads designed with various angles, 10°, 20°, and 30°. Longitudinal magnetoresistance measurement was adopted to demonstrate the short-circuiting effect. The mechanism can be attributed to the formation of the vortex structures developed beneath the lead-covered areas, in which the vortex pair domain configuration was confirmed using a magnetic force microscopy.
Relation:	Journal of Magnetism and Magnetic Materials, 310(2) Part3: 1986-1988
Appears in Collections:	[Department of Physics] Periodical Articles

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