Molecular-dynamics study of collision, implantation, and fragmentation of Ag7 on Pd(100)
By using embedded-atom-method interatomic potentials and molecular-dynamics simulations, we study the collision of a single Ag/sub 7/ cluster on the Pd(100) substrate, at impact energies in the direction perpendicular to the (100) surface E/sub 1/=20 eV (2.86 eV/atom) and E/sub 2/=95 eV (13.6 eV/atom). Our results indicate that implantation occurs at both impact energies, but it is more important at E/sub 2/. As opposed to what is shown experimentally, little fragmentation takes place for E/sub 1/, while the calculated cluster fragmentation is in good agreement with the experimental data for E/sub 2/.
Keywords: atom surface impact; atomic clusters; ion implantation; metal clusters; molecular dynamics method; palladium ; potential energy surfaces; silver molecular dynamics study; collision ; implantation ; fragmentation ; Pd100 ; embedded atom method interatomic potentials; molecular dynamics simulations; single Ag 7 cluster; impact energies; 20 eV; 95 eV; Pd ; Ag 7 A7920N (Atom molecule and ion impact); A6170T (Doping and implantation of impurities); A6180L (Atoms and molecules); A79; A61; A7; A6
Record created on 2006-07-25, modified on 2016-08-08