华东师范大学学报(自然科学版) ›› 2006, Vol. 2006 ›› Issue (3): 114-119.

• 物理学 电子科学技术 • 上一篇    下一篇

电流退火对NiFeP复合丝巨磁阻抗效应的影响

吴士蓉, 袁望治, 阮建中, 赵振杰, 杨燮龙   

  1. 华东师范大学 物理系,上海 200062
  • 收稿日期:2004-10-08 修回日期:2004-12-24 出版日期:2006-05-25 发布日期:2006-05-25
  • 通讯作者: 袁望治

Magneto-Impedance Effect of DC Joule Annealing on NiFeP Composited Wires(Chinese)

WU Shi-rong, YUAN Wang-zhi, RUAN Jian-zhong, ZHAO Zhen-jie, YANG Xie-long   

  1. Department of Physics, East China Normal University, Shanghai 200062, China
  • Received:2004-10-08 Revised:2004-12-24 Online:2006-05-25 Published:2006-05-25
  • Contact: YUAN Wang-zhi

摘要： 用化学镀方法在铜丝上镀NiFeP薄膜，采用电流退火的方法对复合结构丝进行热处理.电流退火使薄膜感生圆周磁各向异性，从而使样品磁阻抗效应有明显提高.退火电流及时间有一个最佳值，当退火电流为2.8 A，退火时间为2 min时，样品在475 kHz时的磁阻抗效应为53.2％.

关键词: 巨磁阻抗效应, 化学镀, NiFeP, 电流退火, 巨磁阻抗效应, 化学镀, NiFeP, 电流退火

Abstract: NiFeP/CuBe composite wires were produced by electroless-deposition, then were annealed using a DC Joule annealing technique for certain time in the environment of nitrogen gas. The experiments showed that DC Joule annealing may induce circular anisotropy in the ferromagnetic layer, thus the GMI effect of the composite wires is increased greatly. When the annealing current is 2.8 A and the annealing time is 2 minutes, the sample’s GMI effect reaches the highest value of 53.2% at 475 kHz.

Key words: eletroless-deposition, NiFeP, DC Joule annealing, GMI, eletroless-deposition, NiFeP, DC Joule annealing

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