Self-assembled heterogeneous argon/neon core-shell clusters studied by photoelectron spectroscopy

M. Lundwall, W. Pokapanich, H. Bergersen, A. Lindblad, T. Rander, G. Ohrwall, Maxim Tchaplyguine, S. Barth, U. Hergenhahn, S. Svensson, O. Bjorneholm

Research output: Contribution to journalArticlepeer-review

Abstract

Clusters formed by a coexpansion process of argon and neon have been studied using synchrotron radiation. Electrons from interatomic Coulombic decay as well as ultraviolet and x-ray photoelectron spectroscopy were used to determine the heterogeneous nature of the clusters and the cluster structure. Binary clusters of argon and neon produced by coexpansion are shown to exhibit a core-shell structure placing argon in the core and neon in the outer shells. Furthermore, the authors show that 2 ML of neon on the argon core is sufficient for neon valence band formation resembling the neon solid. For 1 ML of neon the authors observe a bandwidth narrowing to about half of the bulk value. (c) 2007 American Institute of Physics.
Original languageEnglish
JournalJournal of Chemical Physics
Volume126
Issue number21
DOIs
Publication statusPublished - 2007

Subject classification (UKÄ)

  • Physical Sciences
  • Natural Sciences

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