Evidence for ion-induced hypersonic shock waves for computer simulations of argon ion bombardment of copper
Harrison, D.E. Jr.
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A molecular dynamics simulation has been used to study the times at which atoms are ejected during sputtering events. Plots of the atom ejection time versus distance from the impact point indicate that many sputtering events occur along a roughly circular front that propagates outward at hypersonic speed.
The article of record as published may be found at http://dx.doi.org/10.1063/1.92725