Low-energy atomic impacts on the Ag(110) surface are investigated by molecular dynamics simulations based on reliable many-body semiempirical potentials. Trajectory deflections ( steering) caused by the atom - surface interaction are observed, together with impact-following, transient-mobility effects. Such processes are quantitatively analysed and their dependence on the initial kinetic energy and on the impinging direction is discussed. A clear influence of the surface anisotropy on both steering and transient mobility effects is revealed by our simulations for the simple isolated-atom case and in the submonolayer-growth regime. For the latter case, we illustrate how steering and transient mobility affect the film morphology at the nanoscale.
Ceriotti, M., Ferrando, R., & Montalenti, F. (2006). Impact-driven effects in thin-film growth: steering and transient mobility at the Ag(110) surface. NANOTECHNOLOGY, 17, 3556-3562 [10.1088/0957-4484/17/14/033].
Impact-driven effects in thin-film growth: steering and transient mobility at the Ag(110) surface
MONTALENTI, FRANCESCO CIMBRO MATTIA
2006-07
Abstract
Low-energy atomic impacts on the Ag(110) surface are investigated by molecular dynamics simulations based on reliable many-body semiempirical potentials. Trajectory deflections ( steering) caused by the atom - surface interaction are observed, together with impact-following, transient-mobility effects. Such processes are quantitatively analysed and their dependence on the initial kinetic energy and on the impinging direction is discussed. A clear influence of the surface anisotropy on both steering and transient mobility effects is revealed by our simulations for the simple isolated-atom case and in the submonolayer-growth regime. For the latter case, we illustrate how steering and transient mobility affect the film morphology at the nanoscale.
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