Effect of Nanocrystallization on Magnetic Properties and GMI Effect of Microwires

被引：28
|
作者：
Zhukov, Arcady P. [1 ,2 ]
Talaat, Ahmed [1 ]
Ipatov, Mihail [1 ]
Blanco, Juan M. [3 ]
Gonzalez-Legarreta, Lorena [4 ]
Hernando, Blanca [4 ]
Zhukova, Valentina [1 ]
机构：
[1] Univ Basque Country, Dept Fis Mat, San Sebastian 20009, Spain
[2] Basque Fdn Sci, IKERBASQUE, Bilbao 48011, Spain
[3] EUPDS Basque Country Univ UPV EHU, Dept Fis Aplicada, San Sebastian 20009, Spain
[4] Univ Oviedo, Dept Fis, Oviedo 33007, Spain
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2014年 / 50卷 / 06期
关键词：
Giant magnetoimpedance (GMI) effect; magnetic anisotropy; thin microwires; GLASS-COATED MICROWIRES; GIANT MAGNETOIMPEDANCE; AMORPHOUS WIRES; MAGNETOELASTIC ANISOTROPY; FERROMAGNETIC MICROWIRES; MECHANICAL-PROPERTIES; IMPEDANCE; MAGNETOSTRICTION; ALLOYS; OPTIMIZATION;
D O I：
10.1109/TMAG.2014.2303396
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：
We studied giant magnetoimpedance (GMI) effect and magnetic properties of FINEMET-type FeCuNbSiB microwires. We observed that the GMI effect and magnetic softness of glass-coated microwires produced by the Taylor-Ulitovski technique can be tailored either controlling magnetoelastic anisotropy of as-prepared FeCuNbSiB microwires or controlling their structure by heat treatment or changing the fabrication conditions. We observed considerable magnetic softening of studied microwires after annealing. This magnetic softening correlates with the devitrification of amorphous samples. Amorphous microwires exhibited low GMI effect (GMI ratio below 5%). Considerable enhancement of the GMI effect (GMI ratio up to 100%) has been observed in heat treated microwires with nanocrystalline structure. Some of as-prepared Fe-rich exhibited nanocrystalline structure and the GMI ratio up to 45%.
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页数：5
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