Eur. Phys. J. D 30, 343-351 (2004)
https://doi.org/10.1140/epjd/e2004-00103-6

From localised to delocalised electronic states in free Ar, Kr and Xe clusters

¹ Department of Physics, Uppsala University, Box 530, 751 21 Uppsala, Sweden
² Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, United Kingdom
³ MAX-LAB, University of Lund, Box 118, 221 00 Lund, Sweden
⁴ Department of Physical Sciences, University of Helsinki, PO Box 33, 00014 Helsinki, Finland
⁵ Department of Physics, Brasília University, CEP 70910 900 Brasília DF, Brazil
⁶ Department of Synchrotron Radiation Research, Institute of Physics, University of Lund, Box 118, 221 00 Lund, Sweden
⁷ Labóratorio Nacional de Luz Síncrotron (LNLS), Box 6192 CEP, 13084-971 Campinas, Brazil

Corresponding author: ^a raimund.feifel@fysik.uu.se

Received: 5 March 2004
Revised: 4 May 2004
Published online: 24 August 2004

Abstract

We present new results for the inner valence levels of clusters of the three inert gases Ar, Kr and Xe based on photoelectron spectroscopy studies. The inner valence levels are compared to the localised core levels and to the delocalised outer valence levels. This comparison shows a gradual change from a relatively localised behaviour for Ar inner valence 3s, over the intermediate case of Kr inner valence 4s, to a more delocalised behaviour for Xe inner valence 5s. This change correlates well with the ratio between the orbital sizes and the interatomic distances. The Kr4s intermediate case is found to exhibit characteristics of both localised and delocalised behaviour.