| 高磷含量CoP-Cu复合丝巨磁阻抗效应的频谱特性 |
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| 引用本文： | 姚素薇,赵洪英,张卫国,段月琴,王宏智.高磷含量CoP-Cu复合丝巨磁阻抗效应的频谱特性[J].功能材料,2005,36(12):1845-1848. |
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| 作者姓名： | 姚素薇 赵洪英 张卫国 段月琴 王宏智 |
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| 作者单位： | 天津大学,化工学院应用化学系,天津,300072;天津大学,化工学院应用化学系,天津,300072;天津理工大学,理学院材料物理所,天津,300191;天津理工大学,理学院材料科学与工程学院纳米材料研究所,天津,300191 |
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| 基金项目： | 国家自然科学基金资助项目（50271046）;天津理工大学科技发展基金资助项目（LG03019）致谢：感谢天津市“材料物理与化学”重点学科对本项目的大力支助! |
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| 摘 要： | 控制电化学工艺条件在直径为200μm的铜丝表面合成CoP磁性镀层成功地制备出高磷含量CoP—Cu复合丝巨磁阻抗效应材料。当磷含量为20%（原子分数）时，复合丝巨磁阻抗效应非常显著，达80%以上。本文详细研究了复合丝材料的频谱及巨磁阻抗效应频谱，指出复合丝巨磁阻抗具有较低的特征频率及较宽的频率使用范围与此新型结构有关，本文还发现，随频率的增加，最大负巨磁阻抗比对应的外加直流磁场也在增加，并且在高频与低频时，巨磁阻抗效应随磁场的响应曲线明显不同。
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| 关 键 词： | 钴磷合金 电沉积 巨磁阻抗 复合丝 |
| 文章编号： | 1001-9731(2005)12-1845-04 |
| 收稿时间： | 2005-03-30 |
| 修稿时间： | 2005-08-05 |
Study of the giant magnetic impedance effect frequency spectrum of more P content CoP-Cu complex wire |
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| YAO Su-wei,ZHAO Hong-ying,ZHANG Wei-guo,DUAGN Yue-qin,WANG Hong-zhi.Study of the giant magnetic impedance effect frequency spectrum of more P content CoP-Cu complex wire[J].Journal of Functional Materials,2005,36(12):1845-1848. |
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| Authors: | YAO Su-wei ZHAO Hong-ying ZHANG Wei-guo DUAGN Yue-qin WANG Hong-zhi |
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| Affiliation: | 1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072,China ; 2. Institute of Materal Physics, Tianjin University of Technology, Tianjin 300191, China ;3. Institute of Nanometer Materal, Tianjin University of Technology, Tianjin 300191, China |
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| Abstract: | CoP-Cu complex wire having giant magnetic impedance effect(GMI) have been produced by electrodeposing CoP alloy over cylindrical Cu Substrates.The GMI effect of CoP-Cu complex wires was very prominent and the GMI radio of the Co80P20-Cu complex wire was the most.The frequency spectrums of compedence and GMI effect have been studied in detail.It was pointed out that lower charicteristic frequency and wider applied frequency range are related with the special construct of complex wire.It was found that the DC magnetic field strength value in which negative GMI radio was the most increases with increasing of frequency.It was also found that when being set high and low frequency,the response curves of the GMI effect to magnetic field are very different. |
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| Keywords: | CoP alloy electrodeposition giant magnetic impedance(GMI) complex wire |
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