Micromagnetic simulation of a magnetic film with surface roughness

被引：2

作者：

Yuan, Lin ^{[1
]}

Jiang, Jian-Jun ^{[1
]}

Wang, Zhongyou ^{[1
]}

Tian, Bin ^{[1
]}

He, Huahui ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Elect Sci & Technol, Wuhan 430074, Peoples R China

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2008年 / 44卷 / 09期

基金：

中国国家自然科学基金;

关键词：

damping factor; micromagnetic; surface roughness;

D O I：

10.1109/TMAG.2008.2000942

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：

We have simulated micromagnetically the static magnetic structure and magnetic spectrum of a magnetic film with surface roughness, using a finite stripe film model. We found that the rough surface can lead to a ripple magnetic structure, which results in increasing the damping factor of the film, and that the damping factor increases with the increase of the root-mean-square roughness. For a particular film with a given rough surface, the damping factor first decreases because of a decrease of the magnetic dispersion, then increases because of the surface-roughness-induced demagnetizing effect with increasing the external field.

引用

页码：2130 / 2133

页数：4

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