Phase field modeling of submonolayer epitaxial growth
نویسندگان
چکیده
منابع مشابه
Kinetics of Submonolayer Epitaxial Growth
Molecular beam epitaxy is an important method for growing thinlms and nanostructures. One of the scienti c challenges is to understand the fundamental processes that control the evolution of thin lm structure and morphology. The results of kinetic Monte Carlo simulations carried out to study the dependence of the submonolayer scaled island-size distribution on the critical island-size are prese...
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We investigate the kinetics of submonolayer epitaxial growth which is driven by a fixed flux of monomers onto a substrate. Adatoms diffuse on the surface, leading to irreversible aggregation of islands. We also account for the effective diffusion of islands, which originates from hopping processes of their constituent adatoms, on the kinetics. When the diffusivity of an island of mass k scales ...
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A model for island formation in submonolayer epitaxy has been studied in the presence of elastic strain by means of a Monte Carlo simulation. The description, based on rate equations, leads to scaling predictions for cluster statistics and diffusion rates. We generalize these predictions to include the effects of the repulsive elastic interaction. The elastic interaction is caused by the deform...
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The effects of long-range ~Lévy! diffusion in submonolayer epitaxial growth are studied via kinetic Monte Carlo simulations and rate equations. Such long-range diffusion may be relevant in the case of liquid-phase epitaxy and electrochemical deposition. Results for the scaling of the submonolayer island density and size distribution are presented as a function of the Lévy distribution exponent ...
متن کاملRapid Note Logarithmic islanding in submonolayer epitaxial growth
We investigate submonolayer epitaxial growth with a fixed monomer flux and irreversible aggregation of adatom islands due to an effective island diffusion, with a diffusivity for an mass k island proportional to k. For 0 ≤ μ < 1, there is a steady state, while for μ ≥ 1, continuously evolving logarithmic islanding occurs in which the island density grows extremely slowly, as (ln t). In the latt...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2010
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.81.235431