| 复合玻璃包裹纳米晶细丝的巨磁阻抗效应 |
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| 引用本文： | 王蕊丽,赵振杰,袁望治,阮建中,刘龙平,杨燮龙.复合玻璃包裹纳米晶细丝的巨磁阻抗效应[J].华东师范大学学报(自然科学版),2005(Z1). |
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| 作者姓名： | 王蕊丽 赵振杰 袁望治 阮建中 刘龙平 杨燮龙 |
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| 作者单位： | 华东师范大学物理系纳米功能材料与器件应用研究中心，华东师范大学物理系纳米功能材料与器件应用研究中心，华东师范大学物理系纳米功能材料与器件应用研究中心，华东师范大学物理系纳米功能材料与器件应用研究中心，华东师范大学物理系纳米功能材料与器件应用研究中心，华东师范大学物理系纳米功能材料与器件应用研究中心 上海 200062，上海 200062，上海 200062，上海 200062，上海 200062，上海 200062 |
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| 基金项目： | 国家863项目(2002AA302601)
上海市科委资助项目(0352nm060，0452nm055) |
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| 摘 要： | 采用磁控溅射法在铁基纳米晶玻璃包裹丝外沉积铜层,研究了细丝在驱动电流流过不同层的巨磁阻抗效应．结果表明,沉积铜层后会使细丝的磁阻抗比最大值向低频段移动,并且发现当电流同时流入铜层和铁磁层时,在1MHz时就有明显的磁阻抗效应．这与导电层和铁磁层之间存在电磁相互作用有关．
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| 关 键 词： | 巨磁阻抗效应 起始频率 纳米晶 玻璃包裹 |
Giant Magneto-impedance Effects in Nanocrystalline Composite Glass-coated Microwires |
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| WANG Rui-li,ZHAO Zhen-jie,YUAN Wang-Zhi,RUAN Jian-zhong,LIU Long-ping,YANG Xie-long.Giant Magneto-impedance Effects in Nanocrystalline Composite Glass-coated Microwires[J].Journal of East China Normal University(Natural Science),2005(Z1). |
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| Authors: | WANG Rui-li ZHAO Zhen-jie YUAN Wang-Zhi RUAN Jian-zhong LIU Long-ping YANG Xie-long |
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| Abstract: | Composite structured samples of glass-coated Fe-based nanocrystalline wires deposited with a layer of copper by magnetron sputtering method were prepared. The giant magneto-impedance effect (GMI) observed from the samples was carried out as ac driving current flowed through ferromagnetic core, copper shell, and both of the core and shell, respectively. It is found that the maximum GMI frequency decreases from 80 MHz to 60 MHz with copper layer when the current flows through ferromagnetic core. The onset GMI freqwency is also decreased. The results show the electromagnetic interaction between the shell layer and the core. |
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| Keywords: | giant magneto-impedance effect onset frequency nanocrystalline glass-coated |
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