Enhancement of GMI effect in magnetic microwires through the relative temperature dependence of magnetization and anisotropy

被引：11
作者：
Santos, J. D. [1 ,2 ]
Varga, R. [1 ]
Hernando, B. [2 ]
Zhukov, A. [3 ]
机构：
[1] UPJS, Fac Sci, Inst Phys, Kosice, Slovakia
[2] Univ Oviedo, Dept Fis, E-33007 Oviedo, Spain
[3] Univ Basque Country, Fac Quim, Dept Fis Mat, San Sebastian 20080, Spain
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2009年 / 321卷 / 23期
关键词：
Magnetoimpedance; Magnetic microwires; Magnetic anisotropy; GIANT MAGNETOIMPEDANCE; IMPEDANCE; TORSION;
D O I：
10.1016/j.jmmm.2009.07.053
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present the study of Giant Magneto Impedance (GMI) effect in magnetic microwires with zero magnetostriction. It is shown that the temperature response of GMI effect can be enhanced by 80% through the relative temperature dependence of magnetization and anisotropy. However, such effect appears only for low amplitudes of exciting current that induces exciting magnetic field below the anisotropy field of the wire. On the other hand, when measuring at high exciting current (when the exciting field exceeds the anisotropy field), the GMI response decreases monotonically with temperature. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：3875 / 3877
页数：3
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