Magnetization models of Co-Cr film for the computer simulation of perpendicular magnetic recording process

The microscopic magnetization model of medium and the statistical calculation of the vectorial magnetization are proposed in order to give a reliable computer simulation of magnetic recording process. The curling incoherent magnetization reversal mode is introduced for the magnetization model of crystalline particles, because the coherent magnetization reversal model is insufficent for the restoration of M-H loop of Co-Cr film having lower coercive force than the anisotropy field strength. Using the newly proposed method, the vectorial M-H loops of Co-Cr film can be restored well by computer. It will be very useful for the computer simulation of perpendicular magnetic recording.