Many new materials with reversible optical storage have been developed since Ovshinsky firstrealized optical storage based on phase transformation. Of these, the two most widely investigated systems are GeSbTe and AgInSbTe.

• 自Ovshinsky把相变材料用于光存储以来 ；一大批具有可逆光存储性能的材料不断出现 ；其中研究较多的是GeSbTe和AgInSbTe两种体系 .