| 摘要 |
PURPOSE:To obtain the information recording medium having excellent recording and erasing characteristics by adopting a specific compsn. for the average compsn. of the recording layer thereof. CONSTITUTION:This recording medium is constituted of a substrate 12, the recording layer 13 and an org. protective layer 14. The average compsn. of the recording layer 13 is composed of (CdxSb100-x)aChbMc. In the formula, Ch is the chalcogen element selected from Se, Te and S; M is the metal selected from Pd and Au; 50atomic%<=a<100atomic%, 0atomic%<=b<50atomic%, 0atomic%<=c<30atomic%, 10atomic%<=x<80atomic%. The alloy consisting of the Cd and Sb among the constituting components is the alloy which absorbs light pulses, easily changes from the amorphous to crystalline phase and has an extremely large change rate of optical properties. The information recording medium which has the good recording and erasing characteristics and sufficiently withstands practicable use is thereby obtd. |
