Circular domains nucleation in magnetic microwires

被引：10

作者：

Chizhik, A. ^{[1
,2
]}

Zablotskii, V. ^{[3
]}

Stupakiewicz, A. ^{[2
]}

Dejneka, A. ^{[3
]}

Polyakova, T. ^{[3
]}

Tekielak, M. ^{[2
]}

Maziewski, A. ^{[2
]}

Zhukov, A. ^{[1
,4
]}

Gonzalez, J. ^{[1
]}

机构：

[1] Univ Basque Country, Dept Fis Mat, Fac Quim, San Sebastian 20080, Spain

[2] Univ Bialystok, Magnetism Lab, Fac Phys, Bialystok, Poland

[3] Inst Phys ASCR, Prague 18221, Czech Republic

[4] Basque Fdn Sci, IKERBASQUE, Bilbao 48011, Spain

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 20期

关键词：

D O I：

10.1063/1.4807595

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the nucleation of circular domains in the outer shell of magnetic, Co-rich, amorphous microwires over a wide range of magnetic field pulse frequencies and amplitudes. Nucleation in the low barrier regime of different numbers of single domains was detected using the magneto-optical Kerr effect. The amplitude and frequency dependence of the domain nucleation probability is described in the framework of a model which agrees well with the experimental data. We have shown that to efficiently drive magnetic domains in microwires with alternating electric current excitation, precise tuning of the frequency and amplitude of the pulse is necessary. (C) 2013 AIP Publishing LLC.

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页数：4

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