Magnetic recording medium and magnetic storage device using the same

摘要

A magnetic recording medium capable of reducing noise and an error rate of the medium comprises a nonmagnetic substrate; a magnetic layer formed on the surface of the nonmagnetic substrate directly or through a nonmagnetic underlayer; and a protective layer formed on the magnetic layer. The magnetic recording medium satisfies the following relationships:-0.5<={Hc(1)-Hc(p)}/Hc(1)<=0.3Hc(1)>=2 kOe20 Gxmum<=Br(1)xt<=100 Gxmumwhere Hc(1) is a corecivity of the magnetic layer measured in the longitudinal direction; Hc(p) is a coercivity of the magnetic layer measured in the perpendicular direction; Br(1) is a remanent magnetization of the magnetic layer measured in the longitudinal direction; and "t" is a layer thickness of the magnetic layer.