| 摘要 |
PURPOSE:To obtain the information recording medium which is excellent in recording and erasing characteristics by adopting AgSbTe2 for the average compsn. of the recording layer thereof. CONSTITUTION:The recording layer 13 which generates a layer change when subjected to irradiation of a light beam is formed on a substrate 12. The average compsn. of the recording layer 13 is the AgSbTe2 and further an org. protective layer 14 consisting of a UV curing resin, etc., is formed on the recording layer 13. The crystal of this compsn. is a single phase and the compsn. is crystallized by the atom transfer of a short distance at the time when the phase change from the amorphous to crystalline phase takes place and, therefore, the crystallization rate is extremely high. This alloy is capable of stably maintaining the amorphous state. The high-speed recording and erasing of the information are thereby executed and the recording medium which has the excellent stability of the recording state and substantially withstands the practicable use is obtd. |
