Computer simulations of sputtering and fragment formation during keV C60 bombardment of octane and β-carotene

Zbigniew Postawa, Michal Kanski, Dawid Maciazek, Robert J. Paruch, Barbara J. Garrison

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Molecular dynamics computer simulations are used to investigate material ejection and fragment formation during keV C60 bombardment of organic solids composed from small (octane) and medium (β-carotene)-sized organic molecules. Both systems are found to sputter efficiently. For the octane system, material removal occurs predominantly by ejection of intact molecules, whereas fragment emission is a main ejection channel for β-carotene. A difference in the molecular dimensions is proposed to explain this observation. Fragment formation is investigated to answer the question why so few fragments remain in the bombarded solid.

Original languageEnglish (US)
Pages (from-to)3-6
Number of pages4
JournalSurface and Interface Analysis
Volume46
Issue numberS1
DOIs
StatePublished - Nov 1 2014

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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