Open AccessThe giant magneto-impedance effect and frequency dependence of magnetization processes in NiFeCoP/BeCu composite wire
Author(s) -
Xin Hong-Liang,
Yuan Wen,
Cheng Jin-Ke,
Hong Lin,
Ruan Jianzhong,
Zhao Zhang
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.4152
Subject(s) - materials science , magnetization , condensed matter physics , frequency dependence , magneto , electrical impedance , composite number , nuclear magnetic resonance , physics , magnetic field , composite material , magnet , quantum mechanics
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.