| Giant Magneto-Impedance of Co50Ni22Ga28 Alloy with High Chemical Ordering |
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| 作者姓名： | 王岩国 王海英 戴学芳 吴光恒 段晓峰 |
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| 作者单位： | [1]Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080 |
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| 基金项目： | Supported by the National High Technology Research and Development Programme of China under Grant No 2003AA327010, and the National Natural Science Foundation of China under Grant No 60271028. |
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| 摘 要： | The microstructure of CosoNi22Ga28 ribbon with the L10 structure is examined. The band-like morphology is observed. These bands with the width in a range of 40-200 nm appear along the transverse direction of the ribbon. The giant magnetoimpedance （GMI） effect in this alloy is measured. The results show that Co5oNi22Ga28 exhibits a sharp peak of the GAI effect. The maximum GAH ratio up to 360% is detected. The GMI effect measured versus temperature shows large jumps of the magnetoimpedance amplitude at the reversal martensitic transformation temperature 240℃ and Curie temperature 375℃C respectively. The jump ratios of the magnetoimpedance amplitude examined at these temperatures are about 5 and 10, respectively.
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| 关 键 词： | 磁发电机 阻抗 Co50Ni22Ga28 合金 化学分类 |
| 收稿时间： | 2005-04-22 |
| 修稿时间： | 2005-04-22 |
Giant Magneto-Impedance of Co50Ni22Ga28 Alloy with High Chemical Ordering |
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| Wang YanGuo;Wang HaiYing;Dai XueFang;Wu GuangHeng;Duan XiaoFeng.Giant Magneto-Impedance of Co50Ni22Ga28 Alloy with High Chemical Ordering[J].Chinese Physics Letters,2005,22(10):2630-2632. |
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| Authors: | Wang YanGuo;Wang HaiYing;Dai XueFang;Wu GuangHeng;Duan XiaoFeng |
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