Optisches Aufzeichungsmedium und Aufzeichnungsverfahren

摘要

An optical recording medium comprising a recording layer which comprises a phase-change recording material causing a reversible phase change between a crystalline phase and an amorphous phase by irradiation with an electromagnetic wave, characterized in that the phase-change recording material mainly comprises materials expressed by the composition formula X alpha Ge beta Mn gamma Sb delta Te epsilon with each of the components respectively fulfills 0