Induced magnetic anisotropy and stress-impedance effect in nanocrystalline Fe73.5Cu1Nb3Si13.5B9 ribbons

被引：2
|
作者：
Li, Deren [1 ]
Lu, Zhichao [1 ]
Zhou, Shaoxiong [1 ]
机构：
[1] Natl Amorphous & Nanocrystalline Alloys Engn Res, Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China
来源：
IEEE SENSORS JOURNAL | 2006年 / 6卷 / 04期
基金：
中国国家自然科学基金;
关键词：
magnetic anisotropy; nanocrystalline; stress impedance (SI);
D O I：
10.1109/JSEN.2006.877850
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The influence of direction and strength of induced magnetic anisotropy on stress-impedance (SI) effect was experimentally and theoretically studied in this paper. Experimentally, it was found that the magnetic anisotropy of the stress joule heated Fe73.5Cu1Nb3Si13.5B9 nanocrystalline ribbons were determined by direction and strength of the induced anisotropy. Theoretical calculations of the direction and strength of the induced magnetic anisotropy suggest that transverse anisotropy and small anisotropic field result in an increase of the SI effect. To decrease the anisotropic field and increase the transverse anisotropy simultaneously, a complex annealing process was applied to Fe73.5Cu1Nb3Si13.5B9 ribbons, and it was found that the SI effect was drastically improved. A maximum change of 286% in the SI ratio of the complex annealed nanocrystalline Fe73.5Cu1Nb3Si13.5B9 ribbon was observed around 10 MHz frequencies.
引用
收藏
页码：924 / 927
页数：4
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