| 摘要 |
PROBLEM TO BE SOLVED: To provide a perpendicular magnetic recording medium having technology to realize a high density recording which is effective for preventing WATE (Wide Adjacent Track Erasure) phenomenon, its manufacturing method, and a perpendicular magnetic recording and reproducing apparatus. SOLUTION: This is a perpendicular magnetic recording medium having at least a soft magnetic backing layer on a non-magnetic substrate and a perpendicular magnetic layer having magnetic anisotropy in the perpendicular direction for the substrate plane, the soft magnetic backing layer is separated irregularly for each track, the perpendicular magnetic layer is not separated irregularly for each track. Also, in its manufacturing method, after forming the soft magnetic backing layer on the substrate, the soft magnetic backing layer is separated irregularly for each track, after an embedding film is formed at the recessed part of the soft magnetic backing layer, the surface is smoothed, and the perpendicular magnetic layer is formed on it. COPYRIGHT: (C)2006,JPO&NCIPI
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