Wire-length effect on GMI in Co70.3Fe3.7B10Si13Cr3 amorphous glass-coated microwires

被引：20

作者：

Qin, F. X. ^{[1
]}

Peng, H. X. ^{[1
]}

Phan, M. H. ^{[2
]}

机构：

[1] Univ Bristol, Adv Composite Ctr Innovat & Sci, Dept Aerosp Engn, Bristol BS8 1TR, Avon, England

[2] Univ S Florida, Dept Phys, Tampa, FL 33620 USA

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2010年 / 167卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

Giant magnetoimpedance; Co-rich microwires; Critical length; MAGNETO-IMPEDANCE; GIANT MAGNETOIMPEDANCE; SENSORS;

D O I：

10.1016/j.mseb.2010.01.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The sample length dependence of giant magnetoimpedance (GMI) in Co70.3Fe3.7B10Si13Cr3 amorphous glass-coated microwires has been studied experimentally and theoretically in the frequency range of 1-10 MHz. It has been shown that there exists a critical microwire length, below which the GMI effect is favored in shorter microwires and above which longer microwires possess a more sensitive dependence of the real component of the impedance to the frequency variation. It is demonstrated that once the resistance of the microwires of varied length is determined, it is possible to evaluate the change in GMI profiles with respect to the change of wire length. The simplified skin-effect model has been found to well explain the observed behaviors. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：129 / 132

页数：4

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