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Low energy cluster deposition of nanoalloys

Jarvi, T. T. and Kuronen, A. and Nordlund, K. and Albe, K. (2009):
Low energy cluster deposition of nanoalloys.
In: J. Appl. Phys., American Physical Society, pp. 063516-2, 106, (6), [Online-Edition: https://doi.org/10.1063/1.3225910],
[Article]

Abstract

Low energy deposition of metal alloy nanoclusters is studied by molecular dynamics simulations. In a previous study, two mechanisms were introduced for epitaxial alignment of elemental clusters: The heating induced by the surface energy released upon impact and the thermally activated dislocation motion. In this study, these mechanisms are shown to dominate for Cu3Ag, Cu3Au, and Cu3Ni clusters as well. The question whether the alloyed nature of the system or the initial chemical ordering of the particles influences epitaxial alignment with a substrate is discussed. Chemical ordering is shown to have a negligible effect due to disordering occurring at the initial stages of deposition. (C) 2009 American Institute of Physics. {\}doi: 10.1063/1.3225910

Item Type: Article
Erschienen: 2009
Creators: Jarvi, T. T. and Kuronen, A. and Nordlund, K. and Albe, K.
Title: Low energy cluster deposition of nanoalloys
Language: English
Abstract:

Low energy deposition of metal alloy nanoclusters is studied by molecular dynamics simulations. In a previous study, two mechanisms were introduced for epitaxial alignment of elemental clusters: The heating induced by the surface energy released upon impact and the thermally activated dislocation motion. In this study, these mechanisms are shown to dominate for Cu3Ag, Cu3Au, and Cu3Ni clusters as well. The question whether the alloyed nature of the system or the initial chemical ordering of the particles influences epitaxial alignment with a substrate is discussed. Chemical ordering is shown to have a negligible effect due to disordering occurring at the initial stages of deposition. (C) 2009 American Institute of Physics. {\}doi: 10.1063/1.3225910

Journal or Publication Title: J. Appl. Phys.
Volume: 106
Number: 6
Publisher: American Physical Society
Uncontrolled Keywords: Embedded-Atom-Method, Molecular-Dynamics, Metals, Epitaxy, Nanoclusters, Surfaces, Alloys, Size, Ni, Au
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Materials Modelling
Date Deposited: 28 Feb 2012 14:57
Official URL: https://doi.org/10.1063/1.3225910
Funders: This work was performed within the Finnish Centre of Excellence in Computational Molecular Science �CMS�, financed by the Academy of Finland and the University of Helsinki., It was supported by the Academy of Finland under Project No. 205729., We also gratefully acknowledge support within an exchange program from the Academy of Finland and the German Foreign Exchange Service �DAAD�, as well as the grants of computer time from CSC, the Finnish IT Center for Science.
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