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Molecular dynamics simulations of low-energy cluster deposition on metallic targets

Pelletier, J. D. and Shapiro, M. H. and Tombrello, T. A. (1992) Molecular dynamics simulations of low-energy cluster deposition on metallic targets. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 67 (1-4). pp. 296-300. ISSN 0168-583X. doi:10.1016/0168-583X(92)95820-H. https://resolver.caltech.edu/CaltechAUTHORS:20141021-140602792

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Abstract

A modified version of the multiple interaction code SPUT2 was used to simulate impacts of 63-atom Al and Au clusters on 7-layer Au targets. For 1, 5, and 10 eV/atom Al and Au clusters, 50 impacts each were calculated up to a cutoff time of 2 ps. For each case studied, we found that the final shape and penetration depth of the incoming cluster was almost independent of the initial cluster position relative to the target. The 1 and 5 eV/atom Al clusters were flattened to less than 40% of their initial thickness and exhibited registration with the substrate at 2 ps. The 10 eV/atom Al clusters formed a poorly registered monolayer on the Au surface. In these higher-energy collisions a significant number of Al atoms were reflected from the Au surface. The 1 eV/atom Au clusters were flattened to approximately 60% of their initial thickness and also exhibited clear registration with the substrate at 2 ps. Higher-energy Au clusters penetrated deeply into the targets, causing substantial damage and crater formation.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0168-583X(92)95820-H DOIArticle
http://www.sciencedirect.com/science/article/pii/0168583X9295820HPublisherArticle
Additional Information:© 1992 Elsevier Science Publishers B.V. Supported in part by NSF Grant DMR90-11230 at Caltech, and by NSF Grant DMR90-02532 at CSUF.
Funders:
Funding AgencyGrant Number
NSFDMR90-11230
NSFDMR90-02532
Issue or Number:1-4
DOI:10.1016/0168-583X(92)95820-H
Record Number:CaltechAUTHORS:20141021-140602792
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20141021-140602792
Official Citation:J.D. Pelletier, M.H. Shapiro, T.A. Tombrello, Molecular dynamics simulations of low-energy cluster deposition on metallic targets, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Volume 67, Issues 1–4, 1 April 1992, Pages 296-300, ISSN 0168-583X, http://dx.doi.org/10.1016/0168-583X(92)95820-H. (http://www.sciencedirect.com/science/article/pii/0168583X9295820H)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:50628
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:21 Oct 2014 21:28
Last Modified:10 Nov 2021 18:58

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