华东师范大学学报(自然科学版) ›› 2004, Vol. 2004 ›› Issue (1): 45-48.

• 物理 电子科学技术 • 上一篇    下一篇

纵向驱动纳米微晶玻璃包裹丝的巨磁阻抗效应

刘龙平, 赵振杰, 阮建中, 陈婷, 王蕊丽, 杨燮龙   

  1. 华东师范大学物理系，上海 200062
  • 收稿日期:2002-10-07 修回日期:2003-02-14 出版日期:2004-03-25 发布日期:2004-03-25
  • 通讯作者: 杨燮龙

Longitudinally Driven Magneto-impedance Effect on Glass-covered Fe-based Nanocrystalline Microwires

LIU Long-ping, ZHAO Zhen-jie, RUAN Jian-zhong, WANG Rui-li, YANG Xie-long   

  1. Department of physics，East China Normal University，Shanghai 200062, China
  • Received:2002-10-07 Revised:2003-02-14 Online:2004-03-25 Published:2004-03-25
  • Contact: YANG Xie-long

摘要： 采用高频感应加热熔融拉引法制备Fe73.0Cu1.0Nb1.5V2.0Si13.5B9.0 非晶玻璃包裹细丝，经适当温度退火处理得到纳米微晶丝。首次研究了样品在纵向驱动方式下的巨磁阻抗效应，发现T=570℃下退火得到的样品，在驱动电流频率f=300kHz时其最大磁阻抗变化可达1020%.

关键词: Fe基纳米微晶玻璃包裹丝, 巨磁阻抗效应, 纵向驱动, Fe基纳米微晶玻璃包裹丝, 巨磁阻抗效应, 纵向驱动

Abstract: Amorphous Fe73.0Cu1.0Nb1.5V2.0Si13.5B9.0 microwires were prepared by glass-coated melt-spinning technique. Nanocrystalline samples were obtained by annealing the amorphous wires at appropriate temperatures and the longitudinally driven giant magneto-impedance effect has also been investigated for the first time. The result showed that the maximal magneto- impedance value was 1020% obtained in the sample annealed at 5700℃.

Key words: giant magneto-impedance(GMI), longitudinally driven, Fe-based nanocrystalline microwires, giant magneto-impedance(GMI), longitudinally driven

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