Abstract
In order to study the thermal stability of an antiferromagnetically coupled medium and a keepered one with a soft magnetic underlayer, a finite element read/write simulation based on the Poisson equation is performed on the 2D model of the medium and a thin film head system. The model used for the recording layer is a Stoner–Wohlfarth model extended at finite temperatures. As a result, it is found that both media have high thermal stability compared with the conventional medium.
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