| LC共振增强巨磁阻抗效应 |
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| 引用本文： | 吴志明,赵振杰,刘龙平,杨燮龙.LC共振增强巨磁阻抗效应[J].华东师范大学学报(自然科学版),2007,2007(5):123-127. |
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| 作者姓名： | 吴志明 赵振杰 刘龙平 杨燮龙 |
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| 作者单位： | 华东师范大学,物理系,上海,200062 |
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| 基金项目： | 国家自然科学基金
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上海市科委资助项目
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上海市青年科技启明星计划 |
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| 摘 要： | 通过一种新的方法，直接在Fe基玻璃包裹丝外溅射一层铜.研究发现，玻璃绝缘层在复合结构丝中充当电介质的作用，内芯层与外层铜耦合形成附加电容，从而使复合丝形成LC回路,其巨磁阻抗效应从原先的250％增强到330％.通过改变外铜层长度，研究了共振频率对巨磁阻抗效应的影响.
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| 关 键 词： | 巨磁阻抗效应 LC 共振 共振频率 巨磁阻抗效应 LC 共振 共振频率 |
| 文章编号： | 1000-5641（2007）05-0123-05 |
| 收稿时间： | 2006-12-28 |
| 修稿时间： | 2006-12 |
Enhancement of Giant Magneto-Impedance Effect Using LC Resonance |
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| WU Zhi-ming,ZHAO Zhen-jie,LIU Long-ping,YANG Xie-long.Enhancement of Giant Magneto-Impedance Effect Using LC Resonance[J].Journal of East China Normal University(Natural Science),2007,2007(5):123-127. |
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| Authors: | WU Zhi-ming ZHAO Zhen-jie LIU Long-ping YANG Xie-long |
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| Institution: | Department of Physics, East China Normal University, Shanghai 200062, China |
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| Abstract: | In this study,resonance enhancement of Giant Magneto-Impedance effect in Fe-based glass-coated microwires was investigated.A new method was adopted by sputtering a copper lay- er in the outside of the Fe-based glass-coated wires.A capacitance was formed between the ferro- magnetic core and outer copper layer,where the glass insulator works as dielectric layer.There- fore,the composite wire constructs a LC resonance circuit by itself,resulting in an increase of GMI ratio from 250% to 330%.Meanwhile,the influence of resonance frequency on the GMI effect was discussed. |
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| Keywords: | Giant Magneto-Impedance effect LC resonance resonance frequency |
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