Size-dependent nucleation kinetics at nonplanar nanowire growth interfaces

In nanowire growth, kinetic processes at the growth interface can play an important role in governing wire compositions, morphologies, and growth rates. Molecular-dynamics simulations have been undertaken to probe such processes in a system featuring a solid-liquid interface shape characterized by a...

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Published in:Physical review. E, Statistical, nonlinear, and soft matter physics Statistical, nonlinear, and soft matter physics, 2009-11, Vol.80 (5 Pt 1), p.050601-050601, Article 050601
Main Authors: Haxhimali, T, Buta, D, Asta, M, Voorhees, P W, Hoyt, J J
Format: Article
Language:English
Subjects:
Computer Simulation
Kinetics
Models, Chemical
Models, Molecular
Nanotubes - chemistry
Nanotubes - ultrastructure
Particle Size
Phase Transition
Surface Properties
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description In nanowire growth, kinetic processes at the growth interface can play an important role in governing wire compositions, morphologies, and growth rates. Molecular-dynamics simulations have been undertaken to probe such processes in a system featuring a solid-liquid interface shape characterized by a facet bounded by rough orientations. Simulated growth rates display a dependence on nanowire diameter consistent with a size-dependent barrier for facet nucleation. A theory for the interface mobility is developed, establishing a source for size-dependent growth rates that is an intrinsic feature of systems possessing growth interfaces with faceted and rough orientations.
doi_str_mv 10.1103/PhysRevE.80.050601
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source American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list)
subjects Computer Simulation
Kinetics
Models, Chemical
Models, Molecular
Nanotubes - chemistry
Nanotubes - ultrastructure
Particle Size
Phase Transition
Surface Properties
title Size-dependent nucleation kinetics at nonplanar nanowire growth interfaces
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