上海大学学报（英文版）
上海大學學報（英文版）
상해대학학보（영문판）
JOURNAL OF SHANGHAI UNIVERSITY (ENGLISH EDITION)
2006年
4期
357-361
,共5页
黄灿星%刘龙平%赵振杰%马学鸣
黃燦星%劉龍平%趙振傑%馬學鳴
황찬성%류룡평%조진걸%마학명
GMI effect%electromagnetic interaction%sandwich structured film
A model of giant magneto-impedance (GMI) effect in sandwich-structured film has been proposed based on the superposition principle of electromagnetic field. The expression of impedance is derived in the frames of electrodynamics and ferromagnetism. Electromagnetic interaction between the inner layer and outer layer is discussed. Numerical simulation is conducted and the results show that the conductivity of the inner layer is much larger than that of the outer ferromagnetic layer. The skin effect and the maximum GMI effect of the sandwich film may appear at a much lower frequency compared to that of monofilm. The computational results agree with experimental data.
