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, Terumitsu 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

Fingerprint

anisotropy
vortices
magnetization
Permalloys (trademark)
configurations
switches
microscopes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

Effect of shape anisotropy on switching behaviors of Pac-man NiFe submicron elements. / Park, M. H.; Hong, Y. K.; Gee, S. H.; Erickson, D. W.; Tanaka, Terumitsu; Choi, B. C.

In: Journal of Applied Physics, Vol. 95, No. 11 II, 01.06.2004, p. 7019-7021.

Research output: Contribution to journalArticle

Park, M. H. ; Hong, Y. K. ; Gee, S. H. ; Erickson, D. W. ; Tanaka, Terumitsu ; Choi, B. C. / Effect of shape anisotropy on switching behaviors of Pac-man NiFe submicron elements. In: Journal of Applied Physics. 2004 ; Vol. 95, No. 11 II. pp. 7019-7021.
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