Electronic Structures of Hetero-Crystalline Semiconductor Superlattices
Crystal structures of hetero-crystalline superlattices are proposed and band structures of (hexagonal-diamond Si)/(cubic-diamond Si) and (wurzite ZnS)/(zinc-blend ZnS) superlattices are calculated using the first-principles pseudopotential method within LDA. It is shown that, in both superlattices, the states around the fundamental gap show charge densities localized in one constituent layers, indicating that these superlattices give good quantum well systems. Band offsets are also evaluated.
- M.Saito, K.Hiraga and K.Sumino, Jpn. J. Appl. Phy. 19, L-195 (1980); K.Hiraga, M.Hirabayashi, M.Sato and K.Sumino, Crystal Research and Technology 17, 189 (1982).Google Scholar