Exchange-coupling effect in anisotropy of nano-meter permanent materials

被引：0
|
作者：
Sun, Yan [1 ]
机构：
[1] School of Science, Shandong University of Technology, Zibo 255049, China
来源：
Jisuan Wuli/Chinese Journal of Computational Physics | 2012年 / 29卷 / 03期
关键词：
Grain boundaries - Nanostructured materials - Exchange coupling - Magnetic materials;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Exchange-coupling effect in anisotropy constant of nano-meter magnetic materials is investigated. An equation was put forward for anisotropy at grain boundaries. Due to exchange-coupling between magnetically soft and hard grains, anisotropy of hard grain is decreased while that of soft grain is enhanced. The average anisotropy of soft-hard grains, increases rapidly, reaches a maximum and then decreases slowly. It is consistent with related experimental and theoretic results. Calculated average anisotropy of hard grains is consistent with experiment.
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页码：449 / 452
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