Effect of shape anisotropy on switching behaviors of Pac-man NiFe submicron elements

M. H. Park, Y. K. Hong, S. H. Gee, D. W. Erickson, T. Tanaka, B. C. Choi

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The shape anisotropy effect on the magnetization configuration and the switching behavior of a permalloy Ni 80Fr 20 Pac-man (PM) elements was investigated. The PM elements were of a thickness of 40 nm and the investigation was done by magnetic force microscopes. In an elongated PM type-I (EPM-I) (10%), the probability to form a vortex configuration at an as-patterned state was lower than a PM-I element (47%). It was found that the magnetization of a EPM-II element switches through a single-domain reversal. The results show that a PM element involving a vortex-driven switching process has a nonreproducible reversal.

Original languageEnglish
Pages (from-to)7019-7021
Number of pages3
JournalJournal of Applied Physics
Volume95
Issue number11 II
DOIs
Publication statusPublished - Jun 1 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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