Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1683722 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2007 | 4 Pages |
Abstract
When impacting on a solid, heavy cluster atoms are stopped less then equi-velocity atoms. Using molecular-dynamics simulation, we study this so-called clearing-the-way effect systematically for the exemplary case of Aun clusters (n = 1–402) bombarding a solid Ar target with energies in the range of Eat = 10–1000 eV/atom. We find that cluster stopping is reduced by a factor n−β with respect to that of equi-velocity atoms. The exponent β decreases from 0.46 at Eat = 10 eV/atom to 0.17 at Eat = 1000 eV/atom.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
Christian Anders, Herbert M. Urbassek,