Electron-ion coincidence momentum spectroscopy: Its application to Ar dimer interatomic decay

K. Ueda, X. J. Liu, G. Prümper, H. Fukuzawa, Y. Morishita, N. Saito

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Electron-ion-ion coincidence momentum spectroscopy, a well-established tool to study the molecular-frame core-level photoelectron angular distribution, has been applied to investigate interatomic electronic decay processes in argon dimers Ar2 after the creation of a 2p inner-shell vacancy. Some interatomic Coulombic decay (ICD) processes from an Auger-final dicationic state are identified from the coincidence measurement between the kinetic energy of the ICD electron and the kinetic energy release between Ar+ and Ar2+. The interatomic character of the dissociation processes into Ar+-Ar+ is also discussed.

Original languageEnglish
Pages (from-to)113-118
Number of pages6
JournalJournal of Electron Spectroscopy and Related Phenomena
Issue number1-3
Publication statusPublished - 2007 Mar
Externally publishedYes


  • Argon dimer
  • Dissociation
  • Electron-ion coincidence
  • Interatomic Coulombic decay
  • Momentum spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry


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