Phase-change recording material and information recording medium
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United States of America Patent
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Jul 25, 2006
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app pub date -
Apr 25, 2005
filing date -
Mar 24, 2003
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Abstract
A phase-change recording material on which high speed recording/erasing is possible, which has excellent recording characteristics, which has a high storage stability of recording signals and which is excellent in the repeated recording durability, and an information recording medium using the above material are provided. A phase-change recording material characterized by containing as the main component a composition represented by {(Sb.sub.1-xGe.sub.x).sub.1-yIn.sub.y}.sub.1-z-wM.sub.zTe.sub.w wherein x, y, z and w are numbers satisfying 0.001.ltoreq.x.ltoreq.0.3, 0.ltoreq.y.ltoreq.0.4, 0.ltoreq.z.ltoreq.0.2 and 0.ltoreq.w.ltoreq.0.1, and M is at least one element selected from lanthanoids, provided that z and w are not 0 at the same time.
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