Recording film for use in optical information recording medium, optical information recording medium, and sputtering target

摘要

A recording film for an optical information recording medium excellent in the productivity and also excellent in the durability (recording retainability), as well as an optical information recording medium, including: (1) a recording film for use in an optical information recording medium having a heat conductivity of 0.8 W/Kcm or less, a light absorptivity to a light at a wave length of from 0.3 mun to 1.0 mum of 15% or more and a melting temperature from 300 to 800° C., (2) an optical information recording medium in which the recording film comprises the recording films described above, and (3) a sputtering target for forming the recording film.