Abstract
A previously developed simulation of a thin film recording medium has been extended to include evaluation of noise characteristics. The recording medium has been taken through the dc demagnetisation curve and noise characteristics at various remanent states computed for three degrees of inter-granular exchange coupling. The IRM curves were also computed, to allow the computation of the δM( H) curves. The remanence curves and noise curves were in good agreement with experiment. It was found that the peak in the noise curves for all three degrees of exchange coupling occurred at approximately the same field as the maximum slope in the δM( H) curves.
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