Kinetic-energy-driven enhancement of secondary-electron yields of highly charged ions impinging on thin films of C-60 on Au

E. Bodewits*, R. Hoekstra, K. Dobes, F. Aumayr

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

The secondary electron yields as a result of slow highly charged ions (Ar4+, Ar13+) impinging on clean Au(111), highly oriented pyrolitic graphite, and thin films of C-60 on Au are presented. In order to investigate the dynamics of the neutralization of the highly charged ions in front of the surface, angular scans have been performed. The results give a clear indication that the observed increase in electron yield seen on C-60 compared to Au stems from kinetic-energy-driven processes and not from processes driven by the potential energy carried by the highly charged ion. DOI: 10.1103/PhysRevA.86.062904

Original languageEnglish
Article number062904
Pages (from-to)062904
Number of pages6
JournalPhysical Review A
Volume86
Issue number6
DOIs
Publication statusPublished - 20-Dec-2012

Keywords

  • HOLLOW ATOM DYNAMICS
  • SLOW MULTICHARGED IONS
  • LIF-COVERED AU(111)
  • CLEAN GOLD SURFACE
  • SOLID-SURFACES
  • EMISSION
  • METAL
  • NEUTRALIZATION
  • STATISTICS
  • DEPENDENCE

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