| 摘要 |
PURPOSE:To provide a data recording medium characterized by that an erasure ratio is high and the reptition of recording and erasure is possible by low power. CONSTITUTION:A data recording medium is constituted by providing a recording layer containing a substance represented by general formula AgalphaInbetaSgammaBidelta wherein alpha is 5<=alpha<=20 (at%), beta is 10<=beta<=40 (at%), gamma is 10<=gamma<=40 (at%), delta is 20<=delta<=80 (at%) and alpha+beta+gamma+delta is 100) on a substrate. |
