Magnetic studies in octagon-patterned permalloy submicro-wires

Y. D. Yao*, E-Wen Huang, S. F. Lee, C. Yu, M. S. Wong, Y. R. Ma

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Octagon-patterned permalloy submicron wires composed with fixed octagon-shape elements in different configurations were fabricated by an electron-beam lithography process. In the longitudinal magnetic field both magnetic switch field and the variation of the magnetoresistance ratio near the magnetic switch field increase with an increasing number of octagons perpendicular to the wire direction, and also decrease with increasing temperature from 10 to 300 K. At the remanent state, we have observed a single domain in each parallel octagon unit and vortex domains in all the perpendicular units.

Original languageEnglish
Pages (from-to)1686-1687
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
Issue numberIII
DOIs
StatePublished - 1 Jan 2004

Keywords

  • Magnetic domain
  • Magnetoresistance
  • Submicro-wires

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