Abstract
Magnetic force microscopy (MFM) has been widely used to investigate magnetized states of recording media, and a method of analyzing MFM images as stochastic signals has been proposed. Through the analysis of the variance computed by this method, a parameter L/W was found. However, the relation between the variance variation and the recorded state of media is not well understood. In this study, in order to determine the relation, MFM-out-put signals are simulated by using the micro-track model, and the variation in the variance around the transition region is considered. The relation between the L/W and some media parameters is investigated by means of the above simulation.
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