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Simulation of cluster impacts on metallic surfaces

Shapiro, M. H. and Tombrello, T. A. (1990) Simulation of cluster impacts on metallic surfaces. Physical Review Letters, 65 (1). pp. 92-95. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:SHAprl90

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Abstract

Energy, number-density, and confinement-time properties of 1-keV/atom Al32 and Al63 cluster impacts on Al and Au targets have been investigated by molecular-dynamics simulation. Inertial confinement of the incoming clusters leads to number-density increases of ∼2 for very short time periods (<20 fs) in the primary impact zone. Simultaneous and near-simultaneous multiple collisions occasionally increase the potential energy of a particle to more than twice that allowed in isolated two-body collisions. Up to 12% of the kinetic energy of the incoming cluster is transferred to atoms which eject early in the collision cascade.


Item Type:Article
Additional Information:©1990 The American Physical Society. Received 17 January 1990. T. A. T. acknowledges partial support from the NSF (DMR 86-15641).
Record Number:CaltechAUTHORS:SHAprl90
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:SHAprl90
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.65.92
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1972
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:28 Feb 2006
Last Modified:26 Dec 2012 08:46

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