%0 Journal Article
%T The giant magneto-impedance effect and frequency dependence of magnetization processes in NiFeCoP/BeCu composite wire<br>NiFeCoP/BeCu复合结构丝的巨磁阻抗效应和磁化频率特性
%A Xin Hong-Liang
%A Yuan Wang-Zhi
%A Cheng Jin-Ke
%A Lin Hong
%A Ruan Jian-Zhong
%A Zhao Zhen-Jie
%A <br>辛宏梁
%A 袁望治
%A 程金科
%A 林宏
%A 阮建中
%A 赵振杰
%J 物理学报
%D 2007
%I 
%X The NiFeCoP/CuBe composite wire is produced by electroless-deposition. The composite wire shows distinct magnetoimpedance effect at low frequency. The maximal GMI ratio is 40% at 20kHz and about 97% at 180kHz. The frequency dependence of magnetization in NiFeCoP composite wire is analyzed in terms of equivalent circuits and complex permeability. The relaxation frequency of the composite wire is about 1MHz. The displacement of domain wall can be damped by the DC applied field. So the effect of the DC applied field is to eliminate the parallel RL circuit.
%K GMI
%K permeability
%K relaxation frequency
%K equivalent circuit<br>巨磁阻抗效应
%K 磁导率
%K 弛豫频率
%K 等效电路
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=A89520159F95E162&yid=A732AF04DDA03BB3&vid=014B591DF029732F&iid=DF92D298D3FF1E6E&sid=37FACE2C5BB999D7&eid=3235A6941B4A640A&journal_id=1000-3290&journal_name=物理学报&referenced_num=1&reference_num=22