Internal magnetoimpedance of amorphous wires

Author

Raposo, V. ; Iñiguez, J.I. ; García, D. ; Flores, A.G. ; Vázquez, M.

Author_Institution

Univ. of Salamanca, Spain

Volume

39

Issue

5

fYear

2003

Firstpage

3094

Lastpage

3096

Abstract

Analysis of the usual experimental method to quantify the giant magnetoimpedance (GMI) effect indicates that at high enough working frequencies the values of the impedance can be largely influenced by parasitic impedances of the circuit that affect significantly the analysis of the data. A discussion is introduced on the intrinsic impedance for a Co-based amorphous wire and the actual intrinsic value when parasitic impedances are cancelled.

Keywords

amorphous magnetic materials; boron alloys; cobalt alloys; ferromagnetic materials; giant magnetoresistance; iron alloys; magnetic hysteresis; magnetostriction; metallic glasses; silicon alloys; skin effect; 1 to 8 MHz; 10 to 30 MHz; Co_68.15Fe_4.35Si_12.5B₁₅; Co_68.15Fe_4.35Si_12.5B₁₅ amorphous wires; GMI effect; giant magnetoimpedance effect; hysteresis loops; internal magnetoimpedance; intrinsic impedance; magnetostriction; parasitic impedances; skin effect; working frequencies; Amorphous magnetic materials; Amorphous materials; Electrical resistance measurement; Frequency; Impedance measurement; Magnetic field measurement; Magnetostriction; Skin effect; Surface impedance; Wires;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2003.816014

Filename

1233310