Title :
The effect of fcc grains on the magnetic and recording properties of thin film media
Author :
Grady, K.O. ; Walmsley, N.S. ; Wood, C.F. ; Chantrell, R.W.
Author_Institution :
SEECS, Univ. of Wales, Bangor, UK
fDate :
7/1/1998 12:00:00 AM
Abstract :
The recording density of thin film media is affected by percolation within the transitions. There is some evidence that the presence of low coercivity grains within the films might provide `weak links´ around which percolation nucleates. We have simulated such a system and found that the bulk parameters of films are affected by such grains and more importantly, a dramatic effect on the magnetic microstructure within transitions occurs
Keywords :
cobalt alloys; coercive force; crystal microstructure; exchange interactions (electron); ferromagnetic materials; magnetic hysteresis; magnetic recording; magnetic thin films; magnetisation reversal; percolation; remanence; FCC grains; bit transitions; disordered grain structure; exchange coupling parameter; exchange decoupling; hysteresis loops; low coercivity grains; magnetic microstructure; magnetic properties; magnetisation reversal; magnetostatic field parameter; micromagnetics; percolation; recording density; recording properties; remanence; thin film media; weak links; Coercive force; FCC; Magnetic anisotropy; Magnetic films; Magnetic properties; Magnetic recording; Magnetostatics; Microstructure; Perpendicular magnetic anisotropy; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
