Perpendicular magnetic anisotropy in FeCo/Pt multilayer films

Author

Iwata, S. ; Parkin, S.S.P. ; Suzuki, T. ; Weller, D.

Author_Institution

Dept. of Electron., Nagoya Univ., Japan

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

3231

Lastpage

3233

Abstract

A systematic study of the magnetic and magnetooptical properties of FeCo/Pt multilayer films has been performed. The FeCo/Pt multilayer exhibits a large intrinsic perpendicular anisotropy which has nearly the same value as that of Co/Pt multilayer films. The surface anisotropy and the volume anisotropy are found to noticeably depend both on the Pt layer thickness and on the FeCo layer thickness. The saturation magnetization is found to exceed the value for pure FeCo alloy at low temperature. The value of the Kerr rotation angle is lower than that for Co/Pt films in the 250<λ<800 nm range, while it is larger than that for Fe/Pt films

Keywords

Kerr magneto-optical effect; cobalt alloys; ferromagnetic properties of substances; iron alloys; magnetic anisotropy; magnetic multilayers; magnetic surface phenomena; metallic thin films; platinum; 250 to 800 nm; FeCo layer thickness; FeCo-Pt multilayers; Kerr rotation angle; Pt layer thickness; intrinsic perpendicular anisotropy; magnetooptical properties; multilayer films; perpendicular magnetic anisotropy; saturation magnetization; surface anisotropy; volume anisotropy; Anisotropic magnetoresistance; Iron; Magnetic films; Magnetic multilayers; Magnetic properties; Optical films; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Saturation magnetization; Temperature;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179768

Filename

179768