National Changhua University of Education Institutional Repository : Item 987654321/15385

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NCUEIR > College of Science > Department of Physics > Periodical Articles > Item 987654321/15385

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/15385

Title:	Probing the Local Magnetization Reversal Through Magnetoresistance Measurement
Authors:	Lo, I. C.;Wu, J. C.;Horng, Lance;Wei, Zung-Hang;Lai, Mei-Fang;Chang, C. R.
Contributors:	物理學系
Date:	2005
Issue Date:	2013-02-05T02:19:07Z
Publisher:	American Institute of Physics
Abstract:	A microstructured permalloy ellipse with six equally spaced nonmagnetic voltage leads has been studied through magnetoresistance measurements and magnetic force microscopy. The aspect ratio and film thickness of the element having three vortices of magnetic configuration were accordingly designed and fabricated using electron-beam lithography through a lift off process. Magnetoresistance curves measured with various pairs of voltage leads have revealed a local magnetic-moment reversal. Two magnetoresistance kinks observed with decreasing∕increasing field strength can be attributed to the vortex formation∕annihilation, which was confirmed by magnetic force microscopy and micromagnetic simulation. The motion of the vortex core driven by the transverse external magnetic field was estimated to be 4.1 nm∕Oe.
Relation:	J. Appl. Phys., 97(10): 10M102
Appears in Collections:	[Department of Physics] Periodical Articles

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