公开(公告)号：EP1170147A4

公开(公告)日：2004-04-14

申请号：EP00908019

申请日：2000-03-10

申请人： MATSUSHITA ELECTRIC IND CO LTD

发明人： YAMADA NOBORU ,  KOJIMA RIE ,  MATSUNAGA TOSHIYUKI ,  KAWAHARA KATSUMI

IPC分类号： G11B7/2433 ,  G03G5/02 ,  G11B7/26 ,  G11B9/00 ,  G11B9/04 ,  G11B9/08 ,  G11B11/00 ,  G11B11/08 ,  G11B11/12 ,  G11B13/00 ,  G11C16/02 ,  H01L45/00 ,  B41M5/26 ,  G11B7/24

CPC分类号： G11B13/00 ,  G03G5/02 ,  G11B7/243 ,  G11B7/2433 ,  G11B7/2585 ,  G11B7/26 ,  G11B7/266 ,  G11B9/00 ,  G11B9/04 ,  G11B9/08 ,  G11B11/00 ,  G11B11/08 ,  G11B11/12 ,  G11B2007/24306 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/24322 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11C13/0004 ,  G11C13/04 ,  G11C2029/0403 ,  H01L45/06 ,  H01L45/1233 ,  H01L45/144 ,  H01L45/1625 ,  H01L45/1683 ,  Y10T428/21

摘要： An information recording medium having such a recording material layer on a substrate where reversible phase transition between electrically or optically detectable states can be caused by electric energy or electromagnetic energy. The recording material forming the recording layer is either a material having a crystal structure including lattice defects in one phase of the reversible phase transition or a material having a complex phase composed of a crystal portion including a lattice defect in one phase of the reversible phase transition and an amorphous portion. Both portions contain a common element. A part of the lattice defects are filled with an element other than the element constituting the crystal structure. The recording medium having a recording thin film exhibits little variation of the recording and reproduction characteristics even after repetition of recording and reproduction excellent weatherability, strong resistance against composition variation, and easily controllable characteristics.