发明授权
- 专利标题： Optical recording material and optical recording medium using same
- 专利标题（中）： 光记录材料和使用其的光记录介质
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申请号： US10138232申请日： 2002-05-01
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公开(公告)号： US06753059B2公开(公告)日： 2004-06-22
- 发明人: Byung-ki Cheong , Soon-Gwang Kim , Won-Mok Kim , Taek-Sung Lee , Sung-Jin Park , Tae-Yon Lee , Ki-Bum Kim
- 申请人： Byung-ki Cheong , Soon-Gwang Kim , Won-Mok Kim , Taek-Sung Lee , Sung-Jin Park , Tae-Yon Lee , Ki-Bum Kim
- 优先权： KR2001-16425 20010329
- 主分类号： B32B302
- IPC分类号： B32B302
摘要：
Disclosed in this invention is a phase change optical recording material for a rewritable recording medium with a high speed crystallization and excellent erasibility, which comprises a composition having the formula of: (AaBbCc)x(GeaSbbTec)1−x wherein, A is an element selected from the elements belonging to the IVB group in the periodic table; B is an element selected from the elements belonging to the VB group in the periodic table; C is an element selected from the elements belonging to the VIB group in the periodic table; a, b and c are atomic ratios; x is a mole fraction in the range of 0 to 1; and at least one of A, B and C has a higher atomic number and thus a smaller diatomic bond strength than that of the corresponding element in the GeSbTe part.