Simulation of Recording Magnetization Patterns of Perpendicular Recording Media

Abstract

Dependence of a recorded magnetization pattern, using a ring head for both single-layered and double-layered perpendicular media, on the magnitude of the magnetomotive force was investigated by computer simulation. It was found that the magnetization pattern of the single-layered medium with a large recording current became indistinct because of both a decrease in head field gradient and an increase in transition curvature. The magnetization pattern of the double-layered medium, however, was distinct at a large recording current.