Title :
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
fDate :
9/1/1992 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
