外镀铜层玻璃包裹丝的巨磁阻抗效应

华东师范大学学报(自然科学版) ›› 2013, Vol. 2013 ›› Issue (1): 115-120.

外镀铜层玻璃包裹丝的巨磁阻抗效应

王蕊丽^1，2，阮建中²，孔祥洪¹，杨渭¹，王江涛³，赵振杰²

1. 上海海洋大学物理实验室，上海 201306;
2. 华东师范大学物理系纳光电集成与先进装备教育部工程研究中心，上海200062;
3. 华东师范大学软件学院，上海 200062

收稿日期:2012-02-01 修回日期:2012-05-01 出版日期:2013-01-25 发布日期:2013-01-18

Giant magneto-impedance on glass-coated microwires with copper layer

WANG Rui-li ^1,2, RUAN Jian-zhong ², KONG Xiang-hong ¹,YANG Wei ¹, WANG Jiang-tao ³, ZHAO Zhen-jie ²

1. Teaching Foundation Department of Physics, Shanghai Ocean University, Shanghai 201306, China;
2. Department of Physics, Engineering Research Center for Nanophotonics and Advanced Instrument, East China Normal University, Shanghai 200062, China;
3. Software Engineering Insititute, East China Normal University, Shanghai 200062, China

Received:2012-02-01 Revised:2012-05-01 Online:2013-01-25 Published:2013-01-18

摘要/Abstract

摘要： 首先利用高频感应加热熔融拉丝法制备了Fe_73.0Cu_1.0Nb_2.0Si_13.5B_9.0玻璃包裹非晶丝;然后在氮气保护下480~650 ℃之间退火0.5 h; 最后利用化学镀方法在570 ℃退火的玻璃包裹丝上沉积了一层铜，构成复合结构丝.利用扫描电镜测量了材料的几何尺寸，研究了玻璃包裹丝退火前后及复合结构丝的巨磁阻抗效应.结果表明，材料的软磁特性改善提高了材料的磁阻抗比，铜层与磁性层之间的电磁相互作用也影响磁阻抗比.

关键词: 巨磁阻抗效应, 化学镀, 趋肤效应, 软磁特性

Abstract: The amorphous wires of nominal compositions Fe_73.0Cu_1.0Nb_2.0Si_13.5B_9.0 were prepared by glass-coating melt-spinning method. Then, the wires were annealed at 480~650 ℃ for 30 min in nitrogen atmosphere. The composite wires with copper layer using electroless deposition were produced, a thin layer of copper deposited onto the microwires annealed at 570 ℃. The morphology of composite microwires was observed using SEM. The giant magnetoimpedance effect on the samples was investigated. The results show that soft magnetic properties of the specimen can improve its MI ratio. The electromagnetic interactions between the ferromagnetic core and the copper layer can also affect MI ratio.

Key words: giant magneto-impedance effect, electroless deposition, skin effect, soft magnetic properties

中图分类号:

O482.5

王蕊丽，阮建中，孔祥洪，杨渭，王江涛，赵振杰. 外镀铜层玻璃包裹丝的巨磁阻抗效应[J]. 华东师范大学学报(自然科学版), 2013, 2013(1): 115-120.

WANG Rui-li, RUAN Jian-zhong, KONG Xiang-hong, YANG Wei, WANG Jiang-tao, ZHAO Zhen-jie. Giant magneto-impedance on glass-coated microwires with copper layer[J]. Journal of East China Normal University(Natural Sc, 2013, 2013(1): 115-120.

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