Physical properties and giant magnetoimpedance sensitivity of rapidly solidified magnetic microwires

被引：17

作者：

Dufay, B. ^{[1
,2
,3
,4
]}

Saez, S. ^{[1
,2
,3
]}

Dolabdjian, C. ^{[1
,2
,3
]}

Yelon, A. ^{[4
]}

Menard, D. ^{[4
]}

机构：

[1] Univ Caen Basse Normandie, UMR GREYC 6072, F-14032 Caen, France

[2] ENSICAEN, UMR GREYC 6072, F-14050 Caen, France

[3] CNRS, UMR GREYC 6072, F-14032 Caen, France

[4] Ecole Polytech, Dept Genie Phys & Regrp Quebecois Mat Pointe, Montreal, PQ H3C 3A7, Canada

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2012年 / 324卷 / 13期

关键词：

Giant magnetoimpedance (GMI); Voltage sensitivity; Magnetometry; Soft amorphous wire; Ferromagnetic resonance; Magnetic sensor; ANISOTROPY;

D O I：

10.1016/j.jmmm.2012.02.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The relation between the magnetoimpedance and the magnetic properties of a wide set of soft magnetic microwires from several sources has been studied. Magnetic properties were obtained by vibrating sample magnetometry and ferromagnetic resonance spectroscopy. The magnetoimpedance voltage sensitivity of each sample, the criterion of interest for high sensitivity magnetometer design, was then evaluated at several frequencies and drive currents. It appears that all samples possess roughly similar properties, regardless of their fabrication process or chemical composition. The voltage sensitivity of the samples obtained from experimental measurement is compared with a simple model of sensitivity. The general trends predicted by the model provide useful insights for materials optimization. Averaged sensitivity over the sample set is around 10 kV/T/cm at 10 MHz. The critical importance for sensitive magnetometry of the maximum excitation current permissible in each wire is also highlighted. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：2091 / 2099

页数：9

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