Abstract
A simplified model for recording with a probe head on double layer perpendicular media is presented. This model includes a variation of the recorded magnetization with depth in the medium. The writing process is treated by matrix inversion of the field transforms and a simplified transition demagnetization due to medium motion. Comparisons with experiment show good agreement with thickness and spacing dependence of pulse shape and D <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">50</inf> density.
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