Calculation of absolute electron-impact ionization cross-sections of dimers and trimers

H. Deutsch, K. Becker, T. D. Märk

Research output: Contribution to journalArticle

Abstract

We report calculations of the electron-impact ionization cross-sections of selected dimers (homonuclear diatomic molecules) and trimers (homonuclear triatomic molecules) using a method which relies only on macroscopic quantities in conjunction with a "defect concept". The empirically determined defect describes the deviation of the cluster (dimer, trimer) cross-sections from a simple linear dependence on the cluster size. We compare the calculated cross-sections to experimental data for the dimers S2 and F2 and the trimer O3 and we present predictions for the ionization cross-sections of Br2, I2, C2 and C3 for which no experimental data are available. Lastly, we extend the method to the calculation of ionization cross-sections for the fullerenes C60 and C70.

Original languageEnglish (US)
Pages (from-to)283-287
Number of pages5
JournalEuropean Physical Journal D
Volume12
Issue number2
StatePublished - Nov 2000

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ionization cross sections
trimers
electron impact
dimers
triatomic molecules
cross sections
defects
diatomic molecules
fullerenes
deviation
predictions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Calculation of absolute electron-impact ionization cross-sections of dimers and trimers. / Deutsch, H.; Becker, K.; Märk, T. D.

In: European Physical Journal D, Vol. 12, No. 2, 11.2000, p. 283-287.

Research output: Contribution to journalArticle

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