| 摘要 |
A vertical magnetic recording medium, a manufacturing method thereof, and a magnetic recording apparatus are provided to form a first underlayer on an orientation control layer and to make the grain size of a second underlayer correspond to that of the first underlayer for reducing the grain size dispersion of a second recording layer. A vertical magnetic recording medium(20) comprises a soft magnetic backing layer(12), an orientation control layer(13), first and second underlayers(31), a recording layer(15), a protective layer(16), and a lubrication layer(18). The soft magnetic backing layer is laid on a substrate(11). The second underlayer has a gap separating grains formed on the first underlayer. Magnetic particles grow on a grain of the second underlayer via epitaxy to facilitate isolation of the magnetic particles. The thickness of the soft magnetic backing layer is 50nm~2mum. The thickness of the orientation control layer is 1.0nm~10nm.
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