| 玻璃包覆钴基非晶丝巨磁阻抗的长度效应 |
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| 引用本文： | 田斌,江建军,何卿,袁林,邸永江,马强.玻璃包覆钴基非晶丝巨磁阻抗的长度效应[J].功能材料,2007,38(12):1965-1967. |
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| 作者姓名： | 田斌 江建军 何卿 袁林 邸永江 马强 |
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| 作者单位： | 华中科技大学,电子科学与技术系,湖北,武汉,430074 |
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| 基金项目： | 国家自然科学基金
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教育部跨世纪优秀人才培养计划 |
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| 摘 要： | 通过测量长度不同的玻璃包覆钴基非晶丝在频率为100kHz时的GMI值,近似计算出玻璃包覆钴基非晶丝的圆周磁导率.玻璃包覆钴基非晶丝圆周磁导率下降随着长度增加而变得剧烈,导致GMI变化更剧烈.利用玻璃包覆钴基非晶丝的磁畴模型,分析不同长度时玻璃包覆钴基非晶丝的磁化过程,合理解释了GMI效应随玻璃包覆钴基非晶丝长度增加而明显的现象.
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| 关 键 词： | 巨磁阻抗 磁畴 退磁能 |
| 文章编号： | 1001-9731（2007）12-1965-03 |
| 收稿时间： | 2007-05-24 |
| 修稿时间： | 2007-09-25 |
Length effect on giant magneto-impedance in glass-covered Co-rich amorphous wire |
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| TIAN Bin,JIANG Jian-jun,HE Qin,YUAN Lin,DI Yong-jiang,MA Qiang.Length effect on giant magneto-impedance in glass-covered Co-rich amorphous wire[J].Journal of Functional Materials,2007,38(12):1965-1967. |
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| Authors: | TIAN Bin JIANG Jian-jun HE Qin YUAN Lin DI Yong-jiang MA Qiang |
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| Abstract: | The circular permeability of glass-covered Co-rich amorphous wires can be approximately calculated from the giant magneto impedance that is measured in some lengths with current frequency at 100kHz. The giant magneto impedance become acutely with longer wire for the reason that the circular permeability is changed acutely. Using domain model of glass-covered Co-rich amorphous wires, it can be explained by the magnetization process that the GMI becomes acutely with longer length. |
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| Keywords: | giant magneto-impedance domain demagnetization energy |
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