ERASABLE OPTICAL RECORDING MATERIALS AND METHODS BASED ON TELLURIUM ALLOYS

摘要

An optical recording element comprising a thin film of an alloy is disclosed. The alloy is represented by the formula Tea(SbxSnyInz)1-a wherein a is between 0.38 and 0.62; x is between 0.05 and 0.65; y divided by z is between 0.5 and 5; with the proviso that the product of (y+z) and (1-a) is greater than 0.20. The alloys have improved data stability while retaining excellent write-erase characteristics.