Abstract
Ring head recording on single layer perpendicular recording media was studied by a simple simulation analysis based on a loop tracing method considering only the perpendicular component. Although the assumed model was primitive, the simulation results qualitatively well explained experimental results such as decrease in output at high recording currents and improvement by using a smaller gap length head. The simulation also expected that a steeper slope in the perpendicular M-H loop of the media is significantly effective to improve the recording performance. This was confirmed by an experiment. However, the steeper loop slope in general has a drawback in the noise property. Thus the slope should have the optimal value which compromise recording and noise properties.
