Nucleation of planar magnetization in ultra-thin magnetic films

被引：26
|
作者：
Chui, ST
机构：
[1] Bartol Research Institute, University of Delaware, Newark
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1997年 / 168卷 / 1-2期
关键词：
nucleation; magnetization; thin film; simulation;
D O I：
10.1016/S0304-8853(96)00690-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study theoretically the magnetization reversal of Heisenberg spins in a 2D plane under an external reversing field at finite temperatures. Nucleation is observed in a Monte Carlo simulation for an array of spins interacting with exchange, anisotropic and dipolar interactions. The nucleus is elliptical in shape. The eccentricity is smaller the larger the dipolar interaction is with respect to the exchange. The coercive field seems to depend linearly on the temperature.
引用
收藏
页码：9 / 14
页数：6
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