Journal article

Threshold peaks and structures in elastic and vibrationally inelastic electron impact cross sections for CS₂

  • Allan, Michael Department of Chemistry, University of Fribourg, Switzerland
    04.06.2003
Published in:
  • Journal of Physics B: Atomic, Molecular And Optical Physics. - 2003, vol. 36, no. 12, p. 2489-2500
English Elastic, vibrationally inelastic and superelastic cross sections were measured for electron impact on CS₂ at 135°, with emphasis on the threshold region. The elastic cross section rises dramatically at low energies. The cross sections for the excitation of all three fundamental vibrations (010), (100) and (001) have very strong threshold peaks, more than ten times higher than those observed for CO₂. The elastic and the (010) and (100) inelastic cross sections have deep narrow structures at energies up to about 0.3 eV. The structures are weak for the (001) vibration. Substantial excitation of overtone vibrations is observed even near threshold. The threshold structures appear to be caused primarily by the ² Πu valence state of CS₂⁻. Various broad resonant peaks are observed in the cross sections in the 1–12 eV range.
Faculty
Faculté des sciences et de médecine
Department
Département de Chimie
Language
  • English
Classification
Chemistry
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/300226
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