Asymmetric giant magnetoimpedance in twisted CoFeCrSiB amorphous ribbons

被引:11
|
作者
Kraus, L.
Malatek, M.
Yoon, S. S.
Kim, C. G.
机构
[1] Acad Sci Czech Republ, Inst Phys, CR-18221 Prague 8, Czech Republic
[2] Czech Tech Univ, Dept Measurements, CZ-16627 Prague, Czech Republic
[3] Andong Natl Univ, Dept Phys, Andong 760749, South Korea
[4] Chungnam Natl Univ, Res Ctr Adv Magnet Mat, Taejon 305764, South Korea
关键词
amorphous systems-soft magnetic; magnetoimpedance; helical anisotropy;
D O I
10.1016/j.jmmm.2006.02.124
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The asymmetry of axial and off-diagonal impedance was investigated in as-quenched and field-annealed amorphous Co67Fe4Cr7Si8 B-14 ribbons. The asymmetry of impedance characteristics can be controlled by DC bias current and torque. When an appropriate uniaxial anisotropy is superimposed very high field sensitivity (about 3000%/Oe) can be obtained. The proposed theoretical model well explains the observed behavior. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:214 / 217
页数:4
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