Tunable metastability of surface nanostructure arrays.
A Fokker-Planck equation is used to model the coarsening of surface nanostructure arrays. Metastable states are identified which are associated with a narrow size distribution and a coverage dependent mean island size. This is a general feature linked to nanostructures which, as a function of island size, are associated with a minimum in formation energy per atom and a positive chemical potential gradient. This has important implications for the self-organization of quantum dots.
Jesson
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School of Physics and Materials Engineering, Monash University, Victoria 3800, Australia.
Munt
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TP
Shchukin
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VA
Bimberg
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