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

被引：6
|
作者：
Lee, JH
Oh, KW
Kim, HJ
Kim, KY
机构：
[1] Seoul Natl Univ, Nano Device Res Ctr, Korea Inst Sci & Technol, Seoul 136791, South Korea
[2] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 152742, South Korea
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷
关键词：
magnetic dot; micromagnetic simulation; permalloy;
D O I：
10.1016/j.jmmm.2003.12.624
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页码：736 / 737
页数：2
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