| 三明治结构薄膜巨磁阻抗效应的电磁分析 |
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| 引用本文： | 黄灿星,刘龙平,赵振杰,马学鸣.三明治结构薄膜巨磁阻抗效应的电磁分析[J].上海大学学报(英文版),2006,10(4):357-361. |
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| 作者姓名： | 黄灿星 刘龙平 赵振杰 马学鸣 |
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| 作者单位： | 华东师范大学 |
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| 摘 要： | 1 Introduction The giant magneto-i mpedance ( GMI) effect is alarge change of AC i mpedance of soft magnetic con-ductor upon application of an external magnetic field .It has drawn much research attention because of itsprospective applications in high sensitive magnetic sen-sors. GMI materials can be of the forms of homoge-neous wires1-3], ribbons2 ,4 ,5], fil ms3], inhomoge-neous forms of microtubes6 ,7]and sandwich structuredfil ms8-10]. Thin fil ms are more preferable for sensorappl…
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| 关 键 词： | GMI效应 电磁相互作用 夹层结构薄膜 电磁分析 |
| 文章编号： | 1007-6417（2006）04-0357-05 |
| 收稿时间： | 2004-10-29 |
| 修稿时间： | 2005-01-14 |
Electromagnetic analysis of GMI effect in sandwich structured films |
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| Can-xing Huang,Long-ping Liu,Zhen-jie Zhao,Xue-ming Ma Ph. D..Electromagnetic analysis of GMI effect in sandwich structured films[J].Journal of Shanghai University(English Edition),2006,10(4):357-361. |
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| Authors: | Can-xing Huang Long-ping Liu Zhen-jie Zhao Xue-ming Ma Ph D |
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| Institution: | (1) Department of Physics, East China Normal University, 200062 Shanghai, P.R. China |
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| Abstract: | 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. |
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| Keywords: | GMI effect electromagnetic interaction sandwich structured film |
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