Giant magnetoimpedance effect and domain wall dynamics in Co-rich amorphous microwires

被引：15
|
作者：
Zhukov, A. [1 ,2 ,3 ]
Chizhik, A. [1 ,3 ]
Ipatov, M. [1 ,3 ]
Talaat, A. [1 ,3 ]
Blanco, J. M. [3 ]
Stupakiewicz, A. [4 ]
Zhukova, V. [1 ,3 ]
机构：
[1] Univ Basque Country, Fac Quim, Dept Fis Mat, San Sebastian 20080, Spain
[2] Basque Fdn Sci, Ikerbasque, Bilbao 48011, Spain
[3] Univ Basque Country, EUPDS, Dept Fis Aplicada 1, San Sebastian 20018, Spain
[4] Univ Bialystok, Fac Phys, Magnetism Lab, PL-15424 Bialystok, Poland
来源：
JOURNAL OF APPLIED PHYSICS | 2015年 / 117卷 / 04期
关键词：
INDUCED MAGNETIC-ANISOTROPY; MAGNETOSTRICTION;
D O I：
10.1063/1.4906503
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The giant magnetoimpedance (GMI) effect, as well as the magnetic and magneto-optical properties, of Co69.2Fe4.1B11.8Si13.8C1.1 and Fe73.8Cu1Nb3.1B9.1Si13 amorphous microwires is studied. It is observed that the magnetic properties and the GMI effect of the Co-rich microwire can be tuned by heat treatment. A high GMI effect has been observed in as-prepared Co-rich microwires. After appropriate annealing of the Co-rich microwires, fast domain wall propagation and a GMI effect can be simultaneously observed in the same sample, and annealing is seen to affect both the diagonal and off-diagonal GMI components. Using complementary studies of the bulk and surface magnetic properties, an attempt is made to explain the great difference observed in the GMI properties of Co- and Fe-based microwires exhibiting very similar bulk hysteresis loops. (C) 2015 AIP Publishing LLC.
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页数：7
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