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Park Chanro Park C. G. Lee Chae-Deok Noh S. K. 《Journal of Electronic Materials》1997,26(9):1053-1057
InGaAs/GaAs superlattice was grown by molecular beam epitaxy (MBE) on GaAs (100) substrate at low substrate temperature (250°C).
The as-grown superlattice sample was then annealed at various temperatures for 10 min. The as-grown superlattice was pseudomorphic
and stable up to 800°C annealing. Annealing at 850°C or higher temperatures, however, caused strain relaxation accompanying
with dislocation generation at the As precipitate. Dislocation generation at the As precipitate was influenced by two factors.
The one is lattice mismatch between GaAs and As precipitate, and the other is elastic interaction force acting on the As precipitate. 相似文献
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