High Speed Transformations in Phase-Change Optical Recording Media

Publisher Website
Google Scholar
Abstract
Characteristics of erasable phase-change optical recording media: SbTe-, SbSe-, InTe-, InSe- and GeTe-based thin films and their two binary compounds are reviewed, with particular focus on stability and fast reversibility. We first report that the photo-crystallization dominates in optical recording media since the time required for the transformation is much less than that for the pure thermal crystallization. When photo-crystallization is taken into account, the activation energy for crystallization, Δ E, in J-M-A equation should be replaced by an effective activation energy ΔE eff which is equal to ΔE-\hbarw. This substitution will suffice to explain the high speed crystallization, i.e. photo-crystallization.

This publication has 0 references indexed in Scilit: