Magnetic Recording Simulation of Thermally Stabilized Recording Media with a thin Film Head

Abstract

The decay of the recorded magnetization due to the thermal fluctuation has become one of the most important problems to be overcome in the technology of high density magnetic recording. In this paper, a self-consistent 2D read/write simulation based on the Poisson equation by a finite element method(FEM) is performed on a system of an AFC medium and a thin film head by using an extended Stoner-Wohlfarth(SW) model for the recording layers, where the switching rate of each SW particle at finite temperatures is taken into account by using the Neel-Arrhenius law and the master equation.