| 摘要 |
PURPOSE:To obtain an information recording medium having good recording/ reproducing characteristics and stability and is suitable for high-density recording by forming an auxiliary recording layer essentially comprising a compd. of calcogens and metal elements adjacent to at least one interface of a recording film to the substrate side. CONSTITUTION:The information recording medium has a substrate 1 and a recording film 5 in which pits or holes are formed by irradiation of an energy beam for recording. The interface of the recording film 5 to the substrate 1 side is covered with an auxiliary recording layer 4 essentially comprising a compd. of calcogens and metal. If the medium has a base film 3, the film 4 is provided between the base film 3 and the recording film 5, and further the layer 4 may be formed on the opposite interface of the recording film 5 to the substrate 1. Thereby, the rim of a pit formed by irradiation of an energy beam for recording has a smaller diameter, which means that the influence from adjacent recording pits is suppressed low and that the obtd. medium is suitable for high density recording. |
