Magnetization reversal process of the nanosized elliptical permalloy magnetic dots with various aspect ratios

Authors
Lee, JHOh, KWKim, HJKim, KY
Issue Date
2004-05
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v.272, pp.736 - 737
Abstract
We have studied systematically the reversal processes of nanosized elliptical dots with various aspect ratios, and found three states of magnetization reversal in micromagnetics simulation results: single vortex, double vortex and vortex-free reversal. Uncontrollable single and double vortex state was observed in dot with small aspect ratio, stable double vortex state in medium aspect ratio and vortex free reversal in large aspect ratio. These varieties of magnetization processes were unified in single vortex state when tilted held was applied. (C) 2004 Elsevier B.V. All rights reserved.
Keywords
SHAPE; SHAPE; magnetic dot; micromagnetic simulation; permalloy
ISSN
0304-8853
URI
https://pubs.kist.re.kr/handle/201004/137628
DOI
10.1016/j.jmmm.2003.12.624
Appears in Collections:
KIST Article > 2004
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