Evolution of magnetic permeability and magneto-impedance effect in composite wires with insulator layer

被引：4

作者：

Cheng, J. K. ^{[1
,2
]}

Zhao, Z. J. ^{[1
]}

Lin, H. ^{[1
]}

Wu, Z. M. ^{[1
]}

Yang, X. L. ^{[1
]}

Yuan, W. Z. ^{[1
]}

机构：

[1] E China Normal Univ, Dept Phys, Shanghai 200062, Peoples R China

[2] Guizhou Univ, Coll Chem Engn, Guiyang 550003, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2008年 / 320卷 / 06期

基金：

中国国家自然科学基金;

关键词：

giant magneto-impedance; NiCoP; electroless deposition; insulator layer; effective permeability;

D O I：

10.1016/j.jmmm.2007.10.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CuBe/Insulator/NiCoP composite wire was prepared by electroless deposition on an insulated CuBe core with a diameter of 90 mm. The conversion relationship between the magneto-impedance and effective magnetic permeability of the composite wire was derived from an energy conversion model. The evolution of the magnetic permeability and the giant magneto-impedance (GMI) effect were investigated. The results show that a distinct GMI effect can be obtained at relatively low frequency. The largest GMI ratio is 240% at 600 kHz, and the maximal field sensitivity is 34%/Oe. (C) 2007 Elsevier B. V. All rights reserved.

引用

页码：994 / 998

页数：5

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