2018
DOI: 10.1103/physrevmaterials.2.063401
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Formation and morphological evolution of self-similar 3D nanostructures on weakly interacting substrates

Abstract: Vapor condensation on weakly interacting substrates leads to the formation of three-dimensional (3D) nanoscale islands (i.e., nanostructures). While it is widely accepted that this process is driven by minimization of the total film/substrate surface and interface energy, current film-growth theory cannot fully explain the atomic-scale mechanisms and pathways by which 3D island formation and morphological evolution occurs. Here, we use kinetic Monte Carlo simulations to describe the dynamic evolution of single… Show more

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Cited by 41 publications
(57 citation statements)
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“…Thus, an atom encounters a different local atomic environment when attempting to diffuse toward the two sides of the intersection. This is reflected on the bond counting scheme used for calculating process barriers in the KMC algorithm 25 , according to which an atom has to overcome an energy barrier = .…”
Section: Resultsmentioning
confidence: 99%
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“…Thus, an atom encounters a different local atomic environment when attempting to diffuse toward the two sides of the intersection. This is reflected on the bond counting scheme used for calculating process barriers in the KMC algorithm 25 , according to which an atom has to overcome an energy barrier = .…”
Section: Resultsmentioning
confidence: 99%
“…To estimate ΔG * , we approximate γ line to the value of the interatomic bond strength used for E b ( = 0.2517 eV) in our KMC algorithm 25 , divided by the unit length, i.e., γ ≈ Ω E / line b…”
Section: Resultsmentioning
confidence: 99%
See 2 more Smart Citations
“…The goal is to achieve a reliable prediction of complex, realistic microstructures based on given properties like composition and relevant process parameters. Microstructures can be predicted by simulations, e.g., kinetic Monte Carlo [29][30][31][32][33] or molecular dynamic simulation 34,35 , which depend on selection of model architectures, the selection of initial values and are computationally expensive. The interpretation of the overlap between simulation and experimental results remains to be performed by human assessment.…”
mentioning
confidence: 99%