Title :
Interaction effects in multi-layer thin film media
Author :
El-Hilo, M. ; O´Grady, K. ; Chantrell, R.W. ; Sanders, I.L. ; Yang, M.M. ; Howard, J.K.
Author_Institution :
SEES, Univ. Coll. of North Wales, Bangor, UK
fDate :
11/1/1991 12:00:00 AM
Abstract :
The authors report on the magnetic properties of CoPtCr multilayer thin film media. Measurements of δ(H) were made for a range of CoPtCr films with differing numbers of layers, but with a constant overall total magnetic layer thickness. The results indicate that the multilayer films show two types of switching behavior due to the difference in the Cr underlayer and interlayer thicknesses. It is concluded that interactions within the film are reduced when the magnetic single layer is laminated with chromium. Thus the recording performance is expected to be improved as the number of the layers increases, due to the reduction in intergranular coupling between and possibly within the layers
Keywords :
chromium; chromium alloys; cobalt alloys; ferromagnetic properties of substances; magnetic recording; platinum alloys; CoPtCr-Cr; interaction effects; intergranular coupling; magnetic properties; magnetic single layer; multi-layer thin film media; recording performance; switching behavior; total magnetic layer thickness; Chromium; Coercive force; Magnetic films; Magnetic noise; Magnetic recording; Magnetic separation; Noise reduction; Remanence; Saturation magnetization; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
