Magnetic recording medium

Abstract

The present invention aims to provide a magnetic recording medium for high-density magnetic recording suitable for reproducing with an MR head, which has improved electromagnetic characteristics, especially high-density recording characteristics and thermal asperity. Herein disclosed is a magnetic recording medium comprising a substantially nonmagnetic lower layer and a magnetic layer containing a ferromagnetic powder dispersed in a binder provided in this order on a nonmagnetic substrate wherein said magnetic layer has an average thickness ranging from 0.02 μm to 0.1 μm and said magnetic layer has 10 or less projections having a diameter ranging from 5 μm to 100 μm and a height equal to or more than 100 nm per 900 cm on its surface.

Dependencies are inferred from the claim text.