Optimized GMI Response of Co-Based Amorphous Glass-Coated Microwires by Direct Control Over the Magnetoelastic Anisotropy From the Surface Region

Author

Chiriac, Horia ; Corodeanu, Sorin ; Tibu, Mihai ; Óvári, Tibor-Adrian

Author_Institution

Nat. Inst. of Res. & Dev. for Tech. Phys., Iasi

Volume

43

Issue

6

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

2977

Lastpage

2979

Abstract

Results on the correlation between microwire dimensions and anisotropy distribution in the surface region and subsequently on their influence on the magnitude of the GMI response are reported. Calculated results show a strongly nonlinear dependence of surface region anisotropy on the metallic core diameter. Theoretical results allow one to understand the complex relation between GMI response and microwire dimensions. A suitable criterion for the optimization of the magnitude of the GMI effect has been found. Glass thickness has little effect on the magnitude of the GMI effect in optimized microwires

Keywords

amorphous magnetic materials; giant magnetoresistance; glass; magnetic anisotropy; magnetoelastic effects; surface magnetism; amorphous glass-coated microwires; giant magnetoimpedance; glass thickness; magnetoelastic anisotropy; metallic core diameter; Amorphous magnetic materials; Amorphous materials; Anisotropic magnetoresistance; Internal stresses; Magnetic anisotropy; Magnetostriction; Perpendicular magnetic anisotropy; Saturation magnetization; Soft magnetic materials; Thermal stresses; Amorphous magnetic wires; giant magneto-impedance; magnetic anisotropy; surface magnetization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.893765

Filename

4202675