| 摘要 |
PROBLEM TO BE SOLVED: To obtain a recording film which hardly gives rise to a head crash and exhibits high durability without the impairment of optical characteristics by forming a transparent diamond-like carbon layer on a protective layer forming on a substrate and forming a lubricating layer thereon. SOLUTION: The optical recording medium is formed by laminating a first protective layer 12, the recording layer 13 consisting of a magneto-optical recording film, a second protective layer 14, the diamond-like carbon(DLC) layer 15 and the lubricating layer 16 on the substrate 11. Glass, polycarbonate, etc., are usable as the substrate 11. A transparent dielectric film of AlN, SiN, etc., are formed as the first protective layer 12 on the substrate 11. Further, the recording layer 13 consisting of the magneto-optical recording film of TbFeCo, DyFeCo, etc., is formed on the first protective layer 12. AlN, SiN, etc., are formed as the second protective layer 14 on the recording layer 13 and the DLC 15 is formed thereon. Finally, the lubricating layer 16 of a film thickness of >=0.3 to <=4.0 nm is formed, by which the recording medium is obtd. |
