Nonlinear temperature dependence of switching fields in relief-structured Co/Ni80Fe20 particles

Y. Nozaki, K. Matsuyama, S. Ishii

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The temperature dependence of the switching properties in low sub-μm scale Co/Ni80Fe20 particles with different aspect ratios and thicknesses were investigated using magnetotransport measurements of relief-structured films with giant magnetoresistance. The switching field of the particles was found to increase with the slope angle θ due to the variation of the end-domain configuration. A nonlinear temperature dependence of the switching field was observed and was explained by thermal nucleation theory of the magnetization reversal at below 150K.

Original languageEnglish
Pages (from-to)9182-9185
Number of pages4
JournalJournal of Applied Physics
Volume93
Issue number11
DOIs
Publication statusPublished - 2003 Jun 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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