Control of Domain Wall Motion in Permalloy Ring

C. C. Chang; Y. C. Chang; C. C. Chen; J. C. Wu; C. M. Lee

doi:10.1109/TMAG.2006.878414

Control of Domain Wall Motion in Permalloy Ring

C. C. Chang, Y. C. Chang, C. C. Chen, J. C. Wu, C. M. Lee

Department of Physics

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

Domain wall motion through current-induced Oersted field was investigated by magnetic force microscopy, magnetoresistance measurement, and micromagnetic simulation. Microstructured permalloy rings with nonmagnetic control leads were fabricated by means of electron beam lithography. Through variant arrangement of control lead, the generation of uniform and nonuniform Oersted fields on a single element becomes achievable. The movement of the walls within vortex-pair state, clockwise or counterclockwise, was controlled by the Oersted fields.

Original language	English
Pages (from-to)	2960-2962
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	42
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2006.878414
Publication status	Published - 2006 Oct

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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abstract = "Domain wall motion through current-induced Oersted field was investigated by magnetic force microscopy, magnetoresistance measurement, and micromagnetic simulation. Microstructured permalloy rings with nonmagnetic control leads were fabricated by means of electron beam lithography. Through variant arrangement of control lead, the generation of uniform and nonuniform Oersted fields on a single element becomes achievable. The movement of the walls within vortex-pair state, clockwise or counterclockwise, was controlled by the Oersted fields.",

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AU - Chang, Y. C.

AU - Chen, C. C.

AU - Wu, J. C.

AU - Lee, C. M.

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AB - Domain wall motion through current-induced Oersted field was investigated by magnetic force microscopy, magnetoresistance measurement, and micromagnetic simulation. Microstructured permalloy rings with nonmagnetic control leads were fabricated by means of electron beam lithography. Through variant arrangement of control lead, the generation of uniform and nonuniform Oersted fields on a single element becomes achievable. The movement of the walls within vortex-pair state, clockwise or counterclockwise, was controlled by the Oersted fields.

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