Micromagnetics of long ferromagnetic particles

被引:28
作者
Seberino, C
Bertram, HN
机构
[1] Center for Magnetic Recording Research, University of California, San Diego, San Deigo
基金
美国国家科学基金会;
关键词
D O I
10.1109/20.617842
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A 3D micromagnetic model is used to examine nucleation field dependence on exchange length, particle size and external field angle for long ferromagnetic particles. Reasonable agreement is shown between the model's predictions and recent experiments on Ni particles. Illustrations of the reversal mode are included which shaw reversal beginning at the ends and proceeding towards the center of the particle, The amount of discretization necessary for accurate modelling is investigated. For a type particle with a radius equal to the exchange length, a discretization along the length of the particle is found to be adequate.
引用
收藏
页码:3055 / 3057
页数:3
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