Comparative study of the giant magneto-impedance effect in CoFeSiB glass-covered and cold-drawn amorphous wires

Author

Chiriac, Horia ; Óvári, Tibor-Adnan ; Marinescu, Catalin-Sandrino

Author_Institution

Romani, Nat. I, Iasi, Romania

Volume

33

Issue

5

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

3352

Lastpage

3354

Abstract

We performed a study of the giant magneto-impedance effect and its characteristics in nearly zero magnetostrictive glass-covered amorphous wires and in such wires after glass removal at frequencies between 1 kHz and 10 MHz. The results were compared with those obtained for a cold-drawn amorphous wire with the same composition. We also analyzed the dependence of the effect´s sensitivity in these samples on the operating frequency. The observed behaviour was explained in terms of magnetic domain structures and circumferential permeability behaviour at high frequencies, by considering also the skin effect

Keywords

amorphous magnetic materials; boron alloys; cobalt alloys; drawing (mechanical); ferromagnetic materials; giant magnetoresistance; iron alloys; magnetic domains; magnetic permeability; metallic glasses; silicon alloys; skin effect; 1 kHz to 10 MHz; CoFeSiB; circumferential permeability; cold-drawn amorphous wire; giant magneto-impedance; glass-covered amorphous wire; magnetic domain structure; skin effect; Amorphous magnetic materials; Amorphous materials; Frequency; Glass; Magnetic analysis; Magnetic domains; Magnetostriction; Permeability; Skin effect; Wires;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.617941

Filename

617941