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Phase diagrams for growing ordered heteroepitaxial quantum dots and quantum rings by surface prepatterning.
- Source :
-
Applied Physics Letters . 2/12/2007, Vol. 90 Issue 7, p071905-N.PAG. 3p. 3 Diagrams, 2 Graphs. - Publication Year :
- 2007
-
Abstract
- Three-dimensional computer simulations are performed to obtain the phase diagrams for heteroepitaxially grown ordered quantum dots and quantum rings by surface prepatterning. Concave patterning in a squared array may lead to the formation of ordered dots, whereas convex patterning in a squared array may initially lead to the formation of ordered quantum rings, then a transition into quantum dots with further growth. The evolution of the surface chemical potential during growth explains the formation of the ordered surface structures. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 90
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 24176122
- Full Text :
- https://doi.org/10.1063/1.2560981