Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 165-169 |
| Journal | European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics |
| Volume | 50 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2008 |
Bibliographical note
The information about affiliations in this record was updated in December 2015.The record was previously connected to the following departments: Max-laboratory (011012005), Chemical Physics (S) (011001060)
Subject classification (UKÄ)
- Atom and Molecular Physics and Optics
- Natural Sciences
- Physical Sciences
Free keywords
- 73.22.-f Electronic structure of nanoscale materia
- 36.40.-c Atomic and molecular clusters
- 79.60.-i Photoemission and photoelectron spectra