Blue phase change recording at high data densities and data rates

Abstract

We have shown that fast growth determined materials (FGM) can be used in high density (land-groove) high data rate phase change recording. We applied these materials to the DVR-blue system and developed discs with a total capacity of 22 GB at a user data rate of 51 Mbps. Thermal management of the stacks on these discs, especially by the use of thin metal layers, is an important ingredient.