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2013 | 123 | 5 | 831-833
Article title

Molecular Dynamics Simulations of Energetic Ar Cluster Bombardment of Ag(111)

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Abstracts
EN
Large-scale molecular dynamics computer simulations are used to investigate the dynamics of material ejection during high-energy Ar_n cluster bombardment of Ag(111) at normal incidence. The silver sample containing 7 million atoms is bombarded with Ar_n projectiles (n=45-30000) with kinetic energy spanning from a few keV up to 1 MeV. Such a wide range of projectile parameters allows probing processes taking place during low-density collision cascade as well as during high-density events characteristic of micrometeorite bombardment in space. The material modifications and total sputtering yield of ejected particles are investigated. While at low-energy impacts, ejection of individual silver atoms is the main emission channel, the ejection of large clusters from the corona of the created crater dominates for the high-energy impacts.
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Contributors
author
  • Institute of Physics, Jagiellonian University, Kraków, Poland
author
  • University of Information Technology and Management, Rzeszów, Poland
author
  • Institute of Physics, Jagiellonian University, Kraków, Poland
author
  • Institute of Physics, Jagiellonian University, Kraków, Poland
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv123n511kz
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