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The valence band of free K clusters studied by photoelectron and Auger spectroscopies

Författare:
Publiceringsår: 2008
Språk: Engelska
Sidor: 165-169
Publikation/Tidskrift/Serie: European Physical Journal D
Volym: 50
Nummer: 2
Dokumenttyp: Artikel
Förlag: Springer

Sammanfattning

The valence states of free neutral potassium clusters produced by a gas aggregation source were probed by synchrotron radiation based photoelectron spectroscopy. The first ionization energy (IE) of the clusters was determined to be 10% larger than the work function of bulk potassium. Using electrostatic concepts and the IE, the mean size of the clusters was estimated to be approximate to 2000 atoms. Further information about the valence band was provided by investigation of the Auger process initiated by the ionization of the 3p level with a subsequent emission of an Auger electron from the valence band (M-2,M-3 VV). Plasmon satellites were observed in Auger spectra of free metal clusters.

Disputation

Nyckelord

  • Physics and Astronomy

Övriga

Published
Yes
  • ISSN: 1434-6060

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