OPTICAL RECORDING FILM FOR OPTICAL RECORDING MEDIUM AND OPTICAL RECORDING MEDIUM

摘要

Disclosed herein is a recording film for an optical recording medium, in which recording marks are to be formed by irradiation with a laser beam. The recording film is made of an In-base alloy containing either of an In-Ni alloy and an In-Co alloy or both the In-Ni alloy and In-Co alloy in a content in the range of 1 to 50% at. and nitrogen. The In-Ni alloy preferably has a nitrogen content in the range of 5 to 14% at. and the In-Co alloy preferably has a nitrogen content in the range of 5 to 20% at.