Magnetic recording medium

摘要

In a magnetic recording disk of a double-sided recording type according to a perpendicular magnetic recording technique of the invention, recording layers having different film thicknesses are formed on two surfaces of a base layer. The film thickness of one magnetic recording layer is set to be larger than the film thickness of the other magnetic recording layer. Thus, a curl phenomenon can be prevented. In addition, a coercive force of the thicker recording layer is set to be higher than that of the thinner recording layer. A difference in a perpendicular recording density between the two recording layers due to a difference in the film thickness thereof can be compensated for.