Magnetoresistance of microstructured permalloy ellipses having multi-domain configurations

C. Y. Kuo, W. S. Chung, Jong-Ching Wu, Lance Horng, Zung Hang Wei, Mei Feng Lai, Ching Ray Chang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Mirostructured permalloy ellipses having purposely designed multi-domain configurations were investigated. The samples were fabricated using e-beam lithography through a lift-off process. The magnetoresistance measurements were carried out with a constant dc sensing current under the external magnetic field applied along the short axis. The magnetoresistance curves manifest characteristic features in accordance with the specific domain configurations. Step-like/kink features were observed on the ellipses with cross-tie wall/two-vortex configuration and step-like plus kink magnetorsistance curve was found on the ellipse with cross-tie wall combining with two-vortex structure. A magnetic force microscopy and a micromagnetic simulation were employed to support these results.

Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 3
DOIs
Publication statusPublished - 2007 Mar 1

Fingerprint

Permalloys (trademark)
ellipses
Magnetoresistance
Vortex flow
Magnetic force microscopy
configurations
vortices
Lithography
magnetic force microscopy
curves
Magnetic fields
lithography
magnetic fields
simulation

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Kuo, C. Y. ; Chung, W. S. ; Wu, Jong-Ching ; Horng, Lance ; Wei, Zung Hang ; Lai, Mei Feng ; Chang, Ching Ray. / Magnetoresistance of microstructured permalloy ellipses having multi-domain configurations. In: Journal of Magnetism and Magnetic Materials. 2007 ; Vol. 310, No. 2 SUPPL. PART 3.
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Magnetoresistance of microstructured permalloy ellipses having multi-domain configurations. / Kuo, C. Y.; Chung, W. S.; Wu, Jong-Ching; Horng, Lance; Wei, Zung Hang; Lai, Mei Feng; Chang, Ching Ray.

In: Journal of Magnetism and Magnetic Materials, Vol. 310, No. 2 SUPPL. PART 3, 01.03.2007.

Research output: Contribution to journalArticle

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AU - Chung, W. S.

AU - Wu, Jong-Ching

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AU - Wei, Zung Hang

AU - Lai, Mei Feng

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