What is it about?
what happens if strain is really non uniform owing to the discrete nature of the atoms in an alloy. We used empirical potential molecular dynamics and then tried to represent the polarization dipoles due to piezoelectricity. The results were some stunning images and insight into disorder issue in modelling.
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Why is it important?
It was at the time a significant step forward in atomistic modelling of vey large nanostructures (1M atoms). It also showed at the time that difficulties in marrying atomistic and continuum models could be overcome.
Perspectives
I suppose the big thing at the time was the 1M atom simulations, the largest done at the time. Nowadays with increased computing power and parallel architectures those simulations look like steam powered trains compared to a Pendolino........
Dr Max A Migliorato
University of Manchester
Read the Original
This page is a summary of: Atomistic simulation of InxGa1−xAs/GaAs quantum dots with nonuniform composition, Physica E Low-dimensional Systems and Nanostructures, March 2002, Elsevier,
DOI: 10.1016/s1386-9477(02)00323-5.
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