Recording layer for optical information recording medium, optical information recording medium, and sputtering target for optical information recording medium

摘要: Provided is a recording layer for optical information storage media, which not only excels in initial reflectivity and creativity of marks, but also extremely durability under high temperature humidity conditions, can be adequately applied to next-generation discs using blue-violet laser. The media create marks upon irradiation with laser beam. This composed tin-based alloy containing total 1.0 atomic percent or more 15 less at least one selected from neodymium (Nd), gadolinium (Gd), lanthanum (La).