| 摘要 |
PURPOSE:To obtain a high C/N ratio by reducing and uniformly aligning the calibers of pits by mounting a recording film containing a specific alloy as well as carbon and fluorine, on which data is recorded by the irradiation with laser beam, on a substrate. CONSTITUTION:A data recording medium 18 is constituted of a substrate 13 and the recording film 14 laminated to said substrate 13. The substrate 13 is formed using material quality transparent to the laser beam applied to the data recording medium for the purpose of the recording and regeneration of data. The recording film 14 is formed from a material wherein carbon and fluorine are contained in an Ag-Te alloy and the composition of an AgxTe100-x alloy is set to 2<=x<=55 atomic % so that a pit is formed at temp. lower than the m.p. of Te in a heat mode recording system. When Ag is added, effect such that the sizes of pits are aligned and rim parts are reduced and recording density is enhanced is obtained. |
