MFM像の確率信号解析によって得られる分散の解釈  [in Japanese] Analysis of MFM Images as Stochastic Signals and Interpretation of their Variances  [in Japanese]

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 output 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 meaus of the above simulation.