Two-dimensional lateral ordering of self-assembled Ge islands on patterned substrates
✍ Scribed by Zhenyang Zhong; Gang Chen; J Stangl; Th Fromherz; F Schäffler; G Bauer
- Book ID
- 108240636
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 318 KB
- Volume
- 21
- Category
- Article
- ISSN
- 1386-9477
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We report a quantum dot (QD) ensemble structure in which the in-plane arrangements of the dots are in a hexagonal way while the dots are also vertically aligned. Such a distinct lateral ordering of QDs is achieved on a planar GaAs(1 0 0) rather than on a prepatterned substrate by strain-mediated mul
We have fabricated linear chains and two-dimensional arrays of Ge islands by self-assembling and self-ordering processes on vicinal Si substrates. Step bunches and stripe-like strain fields caused by underlying Si/SiGe multilayers with periodic wire-like accumulations at step edges induce an alignm