Internal and translational energy of sputtered silver dimers: a molecular dynamics study

A. Wucher, Barbara Jane Garrison

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

The ejection of Ag2 molecules from a (111)-silver surface bombarded by normally incident Ar+ ions was studied by a molecular dynamics simulation using a many-body embedded-atom interaction potential. First, the dependence of the translational energy distribution on the polar ejection angle was calculated and compared to corresponding experimental results. Then, the internal energy distribution as well as the vibrational and rotational state distributions of sputtered Ag2 dimers were calculated and their correlation with the primary ion energy, the translational energy and the polar ejection angle was examined. It is found that the rotational-vibrational population can be well approximated by Boltzmann distributions revealing vibrational and rotational temperatures of 3000-5000 K and 8000-10000 K, respectively. The dependence of Tvib and Trot on the primary ion energy, the translational energy and the polar ejection angle of the sputtered molecules is shown to be relatively weak.

Original languageEnglish (US)
Pages (from-to)518-522
Number of pages5
JournalNuclear Inst. and Methods in Physics Research, B
Volume67
Issue number1-4
DOIs
StatePublished - Apr 1 1992

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Fingerprint Dive into the research topics of 'Internal and translational energy of sputtered silver dimers: a molecular dynamics study'. Together they form a unique fingerprint.

  • Cite this