Title :
Partitioning of the perpendicular write field into head and SUL contributions
Author :
Schrefl, T. ; Schabes, M.E. ; Suess, D. ; Ertl, O. ; Kirschner, M. ; Dorfbauer, F. ; Hrkac, G. ; Fidler, J.
Author_Institution :
Dept. of Eng. Mater., Sheffield, UK
Abstract :
We perform multiscale finite element simulation of the write process in perpendicular media. The Landau-Lifshitz-Gilbert equation is solved simultaneously for the head, the data layer, and the soft under layer during the motion of the head. All magnetostatic interactions between head, data layer and soft underlayer are concurrently taken into account. This fully integrated recording model enables a detailed analysis of the head field as seen by the media grains.
Keywords :
boundary-elements methods; finite element analysis; magnetic heads; magnetostatics; micromagnetics; perpendicular magnetic recording; Landau-Lifshitz-Gilbert equation; SUL; data layer; fast boundary element method; finite element simulation; magnetostatic interaction; micromagnetics; perpendicular media; perpendicular recording; perpendicular write field; soft underlayer; write process; Boundary element methods; Coils; Finite element methods; Magnetic heads; Magnetic separation; Magnetization processes; Magnetostatics; Maxwell equations; Micromagnetics; Perpendicular magnetic recording; Fast boundary element method; micromagnetics; perpendicular recording; write field;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.855227
