Spontaneous Domain Wall Motion at Zero External Magnetic Field in Ferromagnetic Nanowire

被引：9

作者：

Djuhana, Dede ^{[1
]}

Piao, Hong-Guang ^{[1
]}

Shim, Je-Ho ^{[1
]}

Lee, Sang-Hyuk ^{[1
]}

Jun, Su-Hyeong ^{[1
]}

Yu, Seong-Cho ^{[1
]}

Oh, Suhk Kun ^{[1
]}

Kim, Dong-Hyun ^{[1
]}

机构：

[1] Chungbuk Natl Univ, Dept Phys, Cheongju 361763, South Korea

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2010年 / 46卷 / 02期

关键词：

Ferromagnetic wire; magnetostatic energy; micromagnetic simulation; spontaneous domain wall motion; PROPAGATION;

D O I：

10.1109/TMAG.2009.2032139

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 explored a spontaneous domain wall motion in ferromagnetic nanowire at zero external magnetic field by means of micromagnetic simulation. Very interestingly, even with no external magnetic field, a spontaneous domain wall motion is observed with a speed about few tens of m/s, which is significant and not negligible in analysis of the domain wall dynamics on nanowires. The spontaneous zero-field wall motion is explained based on the minimization condition of the magnetostatic energy, preferring to have a wire magnetically saturated. Average speed of the spontaneous wall motion is found to increase as the wire thickness increases.

引用

收藏

页码：217 / 219

页数：3

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