Stranski-Krastanow growth of tensile strained Si islands on Ge (001)
- Institut fuer Halbleiter- und Festkoerperphysik, Universitaet Linz, Altenberger Strasse 69, A-4040 Linz (Austria)
Stranski-Krastanow island growth is demonstrated for tensile strained silicon epilayers on Ge (001) substrates over a wide range of growth temperatures. Small, Si-rich islands show sidewall faces near {l_brace}1,1,10{r_brace}, whereas larger islands are {l_brace}113{r_brace}-terminated truncated pyramids with an aspect ratio near 0.1. In contrast to compressively strained Ge on Si, we find for Si on Ge a significantly thicker wetting layer of >8 ML and coexistence of islands and dislocations.
- OSTI ID:
- 21016200
- Journal Information:
- Applied Physics Letters, Vol. 91, Issue 23; Other Information: DOI: 10.1063/1.2820605; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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