| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1686558 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2007 | 14 Pages |
Abstract
Impacts of 0.13-1.4Â MeV Au13 clusters onto Au(1Â 1Â 1) target are investigated in molecular dynamics simulations. The evolution of sputtered Au atoms and clusters are simulated up to 10Â ns. The total sputtering yield, angular and velocity distributions of the sputtered material, as well as dimensions of impact induced craters are compared to recent experimental results. It is shown that the experimental observations can be explained by a flow of atoms from the craters. Secondary cluster ejection from crowns formed around the craters is found to be one of the main mechanisms of sputtering. The results are summed up in an empirical model.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
J. Samela, K. Nordlund,