Transition structure in longitudinal thin film magnetic media

A two-dimensional micromagnetic model of longitudinal thin-film media is developed using a self-consistent technique. The model is used to investigate the effects of thickness and alignment of easy axes upon hysteresis properties and transition width. The model predicts hysteresis properties close to those observed in real media and shows that in the track direction the transition can be considered to be a smooth function (either arctangent or error function) with superimposed noise. Further results support a widely used relationship for the variation of transition width with media properties and indicate that variations in media properties in the vicinity of the transition can have significant effects on the transition parameter