Magnetic recording medium

摘要

A magnetic recording medium comprising a substrate having an uppermost magnetic layer containing ferromagnetic metal powder and a lower magnetic layer which is adjacent to the uppermost magnetic layer, wherein the uppermost magnetic layer has an average dry thickness of 0.03 to 0.5 mu m, the ferromagnetic metal powder in the uppermost magnetic layer is orientated in the horizontal direction of the magnetic recording medium, the magnetic recording medium has a coercive force of 120 kA/m or higher in the horizontal direction thereof, and a ratio of a maximum magnetic susceptibility chi max with an external magnetic field applied in the direction perpendicular to the magnetic recording medium to a magnetic susceptibility chi 8 with an external magnetic field of 8 kA/m applied in the same direction, chi max/ chi 8, is 1.3 or higher.