Photoelectron spectroscopy of the caesium halides using synchrotron radiation

J. M. Benson, I. Novak, A. W. Potts

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Photoelectron spectra of the molecular caesium halides have been studied using synchrotron radiation. Features are associated with ionisation from the halogen valence p6 shells and from the caesium 5p6 and 4d10 shells. Structure is largely consistent with ionisation from a classical ionic molecule. Ionisation from the Cs+ 5p shell gives rise to fine structure, which is attributed to electron correlation involving 'electron transfer' from the adjacent halogen anion. A similar process accompanying ionisation from the Cs+ 4d shell appears to prevent the 4f wavefunction collapse expected for the free Cs+ ion. N 4.5O2.3O2.3 Auger structure is observed associated with the collapse of all 4d holes.

Original languageEnglish
Article number017
Pages (from-to)6257-6266
Number of pages10
JournalJournal of Physics B: Atomic and Molecular Physics
Volume20
Issue number23
DOIs
Publication statusPublished - 1987

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