Torsional dependence of second-harmonic amplitude of giant magnetoimpedance in FeCoSiB amorphous wire

Author

Losin, C. ; Gómez-Polo, C. ; Knobel, M. ; Grishin, A.

Author_Institution

Dept. of Condensed Matter Phys., R. Inst. of Technol., Stockholm, Sweden

Volume

38

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

3087

Lastpage

3089

Abstract

The effect of torsional stresses in the magnetoimpedance response of a (Co_0.94Fe_0.06)_72.5Si_12.5B₁₅ amorphous wire is analyzed. In particular, the occurrence of a second-harmonic contribution of the magnetoimpedance voltage is analyzed and compared with the first-harmonic amplitude (impedance). The evolution of both harmonic components are correlated to the estimated permeability contributions obtained through the analysis of the estimated rotational hysteresis loops. The highest torsional dependence of the second-harmonic contribution can be used in the development of new magnetoelastic sensors.

Keywords

amorphous magnetic materials; boron alloys; cobalt alloys; ferromagnetic materials; giant magnetoresistance; iron alloys; magnetic hysteresis; magnetic permeability; magnetoelastic effects; magnetostrictive devices; metallic glasses; silicon alloys; (Co_0.94Fe_0.06)_72.5Si_12.5B₁₅; FeCoSiB; FeCoSiB amorphous wire; first-harmonic amplitude; giant magnetoimpedance; impedance; magnetoelastic sensors; magnetoimpedance voltage; permeability contributions; rotational hysteresis loops; second-harmonic amplitude; torsional dependence; torsional stresses; Amorphous magnetic materials; Amorphous materials; Harmonic analysis; Impedance; Iron; Magnetic analysis; Permeability; Stress; Voltage; Wire;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.802396

Filename

1042459