Modeling Domain Wall Dynamics in Thin Magnetic Strips With Disorder

被引：8
|
作者：
Laurson, Lasse [1 ]
Mughal, Adil [1 ]
Durin, Gianfranco [1 ,2 ]
Zapperi, Stefano [1 ,3 ]
机构：
[1] ISI Fdn, I-10133 Turin, Italy
[2] INRIM, I-10135 Turin, Italy
[3] Univ Modena & Reggio Emilia, CNR, INFM, S3, I-41100 Modena, Italy
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2010年 / 46卷 / 02期
基金：
芬兰科学院;
关键词：
Magnetic domains; magnetic noise; magnet wire; MOTION;
D O I：
10.1109/TMAG.2009.2033819
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 present a line-based model of transverse domain walls in thin magnetic strips, to study the effect of bulk disorder on the domain wall dynamics within the thermally activated creep regime. The creep velocity is found to exhibit a nonlinear dependence on both applied magnetic fields and electric currents, characterized by similar creep exponents for both forms of the external drive. We discuss briefly the significance of the inherently stochastic thermally activated domain wall motion from the point of view of spintronics applications, where it generally is essential to be able to control the domain wall displacement in a deterministic manner.
引用
收藏
页码：262 / 265
页数：4
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