Energy Deposition Control during Cluster Bombardment: A Molecular Dynamics View

2008 ◽  
Vol 80 (14) ◽  
pp. 5302-5306 ◽  
Author(s):  
Kathleen E. Ryan ◽  
Barbara J. Garrison
Keyword(s):  
Molecular Dynamics ◽  
Energy Deposition ◽  
Cluster Bombardment ◽  
Deposition Control

Mechanisms of Molecular Beam Epitaxial Growth on Reconstructed Si{100}: Thermal and Energized Beams

1988 ◽  
Vol 141 ◽  
Author(s):  
B. J. Garrison ◽  
M. T. Miller ◽  
D.W. Brenner
Keyword(s):  
Molecular Dynamics ◽  
Low Temperature ◽  
Epitaxial Growth ◽  
Gas Phase ◽  
Molecular Beam ◽  
Energy Deposition ◽  
Amorphous Structure ◽  
Molecular Beam Epitaxial ◽  
Dynamics Simulations ◽  
Molecular Beam Epitaxial Growth

Summary:Molecular dynamics simulations have been performed that examine the microscopic mechanisms of rearrangements of atoms on the Si{ 1001 surface due to deposition of gas phase atoms. For thermal energy deposition we find that the gas atoms initially attach to dangling bonds of the surface dimer atoms. The dimer ’unreconstruction’ is due to a diffusion event on the surface, thus is temperature activated. We also find that dimers may open in regions of the surface where there are several atoms not at lattice sites, thus a low temperature amorphous structure. For 5-10 eV deposition there are direct mechanisms of dimer opening that occur on the 50-100 fs timescale. For energies greater than 15-20 eV there is implantation of the silicon atoms which leads to subsurface damage.

Mesoscale Energy Deposition Footprint Model for Kiloelectronvolt Cluster Bombardment of Solids

2006 ◽  
Vol 78 (20) ◽  
pp. 7206-7210 ◽  
Author(s):  
Michael F. Russo ◽  
Barbara J. Garrison
Keyword(s):  
Energy Deposition ◽  
Footprint Model ◽  
Cluster Bombardment

scholarly journals Thermal behavior of radiation damage cascades via the binary collision approximation: Comparison with molecular dynamics results

1990 ◽  
Vol 5 (11) ◽  
pp. 2652-2657 ◽  
Author(s):  
M. Caro ◽  
A. Ardelea ◽  
A. Caro
Keyword(s):  
Molecular Dynamics ◽  
Heat Equation ◽  
Energy Deposition ◽  
High Energy ◽  
Binary Collision ◽  
Collision Model ◽  
Energy Cascades ◽  
Simplified Procedure ◽  
Molecular Dynamics Results ◽  
Collision Approximation

Based on the profile of the energy deposition obtained using the binary collision model, we follow the diffusion of energy by solving a simplified version of the heat equation. An estimation of the molten zone compares very well with the molecular dynamics prediction for the same event. We discuss the reasons for this agreement and the relevance of such simplified procedure in terms of present-day computer limitations to simulate high energy cascades using molecular dynamics.

Atomic Sites of Isolated 111In Atoms After Low Energy Deposition on Stepped Cu(100) Surfaces

1996 ◽  
Vol 440 ◽  
Author(s):  
C.R. Laurens ◽  
M.F Roşu ◽  
F. Pleiter ◽  
L. Niesen
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Energy Deposition ◽  
Deposition Process ◽  
Low Energy ◽  
Angular Correlations ◽  
Perturbed Angular Correlations ◽  
Dynamics Simulations

AbstractWe deposited low-energy 111 atoms on a vicinal Cu(100) surface at 82K, and measured the atomic sites by means of the perturbed angular correlations technique (PAC). The sites of the as-deposited In atoms were determined for deposition energies ranging from 5 to 100 eV. The results are coinpared to Molecular Dynamics simulations of the deposition process.

scholarly journals Large-Scale Molecular Dynamics Simulation of Charged Particle Energy Deposition in Plasmas

2011 ◽  
Vol 39 (11) ◽  
pp. 2620-2621 ◽  
Author(s):  
M. P. Surh ◽  
I. N. Ellis ◽  
J. N. Glosli ◽  
F. R. Graziani ◽  
W. D. Krauss ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Charged Particle ◽  
Molecular Dynamics Simulation ◽  
Large Scale ◽  
Energy Deposition ◽  
Particle Energy ◽  
Dynamics Simulation

A combined molecular dynamics and Monte Carlo simulation of the spatial distribution of energy deposition by proton beams in liquid water

2011 ◽  
Vol 56 (19) ◽  
pp. 6475-6493 ◽  
Author(s):  
Rafael Garcia-Molina ◽  
Isabel Abril ◽  
Santiago Heredia-Avalos ◽  
Ioanna Kyriakou ◽  
Dimitris Emfietzoglou
Keyword(s):  
Molecular Dynamics ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Spatial Distribution ◽  
Liquid Water ◽  
Energy Deposition ◽  
Proton Beams
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