Title :
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
fDate :
11/1/1993 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
