Patent ID: 6127016
Filing Date: 2000-10-03
Classification: C23C,G11B,Y10S,Y10T

Abstract:
An optical recording medium comprising a recording layer capable of recording and erasing information by utilizing changes in the phase of a recording material in said recording layer, said recording layer comprising as constituent elements Ag, In, Te and Sb with the respective atomic percent of .alpha., .beta., .gamma. and .delta. thereof being in the relationship of:0<.alpha..ltoreq.30,0<.beta..ltoreq.30,10.ltoreq..gamma..ltoreq.50,10.ltoreq..delta..ltoreq.80, and.alpha.+.beta.+.gamma.+.delta.=100, wherein .alpha. and .gamma. in said atomic percent of .alpha., .beta., .gamma. and .delta. in said recording layer are in the relationship of .alpha.-.gamma./2.ltoreq.-8.