An efficient computational method for finding the equilibrium concentration profiles which minimize the free energy of intermixed heteroepitaxial islands of assigned shape and average composition is described. A combination of a Monte Carlo method and continuum elasticity theory solved by a finite element method is shown to provide the desired profiles allowing for a significant computational gain with respect to atomistic approaches. The role played by dimensionality (ridges versus islands) and by entropy is discussed.
Uhlik, F., Gatti, R., & Montalenti, F. (2009). A fast computational method for determining equilibrium concentration profiles in intermixed nanoislands. JOURNAL OF PHYSICS. CONDENSED MATTER, 21(8), 084217.
Citazione: | Uhlik, F., Gatti, R., & Montalenti, F. (2009). A fast computational method for determining equilibrium concentration profiles in intermixed nanoislands. JOURNAL OF PHYSICS. CONDENSED MATTER, 21(8), 084217. |
Tipo: | Articolo in rivista - Articolo scientifico |
Carattere della pubblicazione: | Scientifica |
Titolo: | A fast computational method for determining equilibrium concentration profiles in intermixed nanoislands |
Autori: | Uhlik, F; Gatti, R; Montalenti, F |
Autori: | |
Data di pubblicazione: | feb-2009 |
Lingua: | English |
Rivista: | JOURNAL OF PHYSICS. CONDENSED MATTER |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1088/0953-8984/21/8/084217 |
Appare nelle tipologie: | 01 - Articolo su rivista |