INFORMATION RECORDING MEDIUM, ITS MANUFACTURING METHOD, INFORMATION RECORDING/REPRODUCING METHOD AND DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an information recording medium that can prevent S from spreading into the recording layer without dropping recording sensitivity. SOLUTION: In an information recording medium that has a dielectric layer 2 and a recording layer 4 in contact together on a substrate 1 and changes the atomic arrangement when radiated with recording energy, the information recording medium of this invention is featured in that the dielectric layer 2 contains S at least and the recording layer 4 contains Ag at least and that the amount of Ag at the boundary of the recording layer 4 and the dielectric layer 2 is larger than the Ag amount near the thickness center of the recording layer.