Magnetic moment distribution at the interface in amorphous ferrimagnetic bilayers

Author

Peral, G. ; Vicent, J.L. ; González, J.M. ; Givord, D.

Author_Institution

Dept. de Fisica de Mater., Univ. Complutense de Madrid, Spain

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

3108

Lastpage

3110

Abstract

In the framework of a micromagnetic approximation, the magnetization process of YCo₂ and GdCo₃ single layer films and of YCo₂/GdCo₂ bilayers (magnetic field applied perpendicular to the surface of the films) is modeled. The aim is to study the influence of the interlayer exchange coupling in the magnetization process of bilayers. The results obtained from the authors´ model show an increase in the saturation field of each individual layer in a bilayer in comparison to the value of that field in the corresponding single films. These results are in quantitative agreement with previous experimental data

Keywords

amorphous state; cobalt alloys; exchange interactions (electron); ferrimagnetic properties of substances; gadolinium alloys; magnetic moments; magnetic multilayers; magnetic properties of amorphous substances; magnetic thin films; metallic thin films; yttrium alloys; GdCo₃ single layer films; YCo₂ single layer films; YCo₂-GdCo₂ bilayers; amorphous ferrimagnetic bilayers; interface; interlayer exchange coupling; magnetic moment distribution; magnetization process; micromagnetic approximation; saturation field; surface; Amorphous materials; Area measurement; Couplings; Energy measurement; Ferrimagnetic materials; Magnetic fields; Magnetic films; Magnetic moments; Magnetization processes; Micromagnetics;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.280884

Filename

280884