title: A fast computational method for determining equilibrium concentration profiles in intermixed nanoislands.
abstract: 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.
authors.affiliation: L-NESS and Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, Via Cozzi 53, I-20125 Milano, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Uhlík
authors.forename: R
authors.initials: R
authors.lastname: Gatti
authors.forename: F
authors.initials: F
authors.lastname: Montalenti