Soft magnetic properties of FeXGaSi (X=Ir, Rh) films

Author

Zeltser, A.M. ; Jagielinski, T.M.

Author_Institution

Eastman Kodak Co., San Diego, CA, USA

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

3508

Lastpage

3510

Abstract

The soft magnetic properties and structure of FeGaSi based thin films containing up to 5.5 at.% Rh and 7.5 at % Ir were investigated. Films containing between 1.5 and 4.5 at.% Ir, after appropriate heat treatment, showed initial permeability of 1000-2000 at 10 MHz, and as high as 800 at 150 MHz, uniaxial anisotropy of 3-7 Oe, saturation magnetization > 14 kG, and thermal stability up to 550°C. The Rh-containing films showed higher permeability at 10 MHz (2500-3000), similar saturation magnetization, but smaller uniaxial anisotropy (<2 Oe), and thermal stability up to 450°C. It is suggested that both FeIrGaSi and FeRhGaSi have potential as films for metal laminated heads

Keywords

ferromagnetic properties of substances; gallium alloys; heat treatment; iridium alloys; iron alloys; magnetic anisotropy; magnetic permeability; magnetic thin films; magnetisation; metallic thin films; rhodium alloys; silicon alloys; FeGaSi based thin films; FeIrGaSi; FeRhGaSi; Rh-containing films; heat treatment; initial permeability; metal laminated heads; saturation magnetization; soft magnetic properties; thermal stability; uniaxial anisotropy; Annealing; Corrosion; Frequency; Iron; Magnetic films; Magnetic heads; Magnetic materials; Magnetic properties; Magnetostriction; Permeability;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.281212

Filename

281212