TY - JOUR
T1 - MD studies of the interactions of low energy particles and clusters with surfaces
AU - Averback, R. S.
AU - Ghaly, Mai
N1 - Funding Information:
The authors are grateful to Dr. Th. Michely for discussions of his unpublished research on surface damagei n Pt and permittingu s to mention that work, here. One of us (RSA) is gratefult o the Alexanderv on Humboldt Stiftung for support during the preparation of this manuscriptT he researchw as supportedb y the U.S. Department of Energy, Basic Energy Sciences, Grant DEFG02-91ER45439. Finally, the authors are grateful for grants of computer time from the NSF National Center for SupercomputingA pplications at the University of Illinois, and the NAS at Ames Air Force Base, CA.
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1994/5/2
Y1 - 1994/5/2
N2 - The interaction of low-energy particles and clusters with metal surfaces has been investigated using molecular dynamics computer simulations. For the particle interactions, a new mechanism for producing damage at surfaces was revealed in simulations of 10 and 20 keV Au bombardment of Au surfaces. Macroscopic modeling of this phenomenon illustrates the important parameters. For the cluster interactions, many different clusters and substrates were employed: the energies were varied from less than one eV (soft landings) to over 3 keV; the size of the clusters was varied from 87 to 1000, the angle of incidence was varied from near glancing to near normal, and both solid and liquid clusters were examined. Embedded atom method potentials were employed to represent the different metals and alloys. A broad range of behavior was observed in the simulations: splatting of the cluster over the surface, the formation of globs, the penetration of the clusters deep into the substrate. General rules are suggested for predicting which type of behavior prevails.
AB - The interaction of low-energy particles and clusters with metal surfaces has been investigated using molecular dynamics computer simulations. For the particle interactions, a new mechanism for producing damage at surfaces was revealed in simulations of 10 and 20 keV Au bombardment of Au surfaces. Macroscopic modeling of this phenomenon illustrates the important parameters. For the cluster interactions, many different clusters and substrates were employed: the energies were varied from less than one eV (soft landings) to over 3 keV; the size of the clusters was varied from 87 to 1000, the angle of incidence was varied from near glancing to near normal, and both solid and liquid clusters were examined. Embedded atom method potentials were employed to represent the different metals and alloys. A broad range of behavior was observed in the simulations: splatting of the cluster over the surface, the formation of globs, the penetration of the clusters deep into the substrate. General rules are suggested for predicting which type of behavior prevails.
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U2 - 10.1016/0168-583X(94)95540-9
DO - 10.1016/0168-583X(94)95540-9
M3 - Article
AN - SCOPUS:4243741845
SN - 0168-583X
VL - 90
SP - 191
EP - 201
JO - Nuclear Inst. and Methods in Physics Research, B
JF - Nuclear Inst. and Methods in Physics Research, B
IS - 1-4
ER -