Patent ID: 6592958
Filing Date: 2003-07-15
Classification: C23C,G11B,Y10T

Abstract:
An optical recording medium, comprising:a recording layer which comprises a phase-change recording material, capable of recording and erasing information by utilizing changes in the phase of said phase-change recording material in said recording layer, said phase-change recording material comprising as constituent elements Ag, In, Sb, and Te; wherein the respective atomic percents of a, b, c, and d satisfy the following relationships: 0.1&lE;a&lE;5, 5&lE;b&lE;13, 62&lE;c&lE;73, 22&lE;d&lE;26, and a+b+c+d&gE;97; and wherein said atomic percents c and d of said elements Sb and Te satisfy the relationship of 88