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Plasmon profiles and shapes of sodium cluster ions

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Zeitschrift für Physik D Atoms, Molecules and Clusters

Abstract

Photo-absorption cross-sections for charged sodium clusters (14 to 48 atoms) have been measured for photon energies from 2.0 eV to 3.5 eV. The spectra are dominated by surface plasma oscillations of the valence electrons exhausting 70–100% of the dipole sum rule. The mean resonance energy of ≃2.75 eV is nearly independent of cluster size. A splitting of the resonance peaks is observed for non-“magic” clusters and discussed in terms of a deformation picture involving prolate and oblate shapes.

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Author notes

  1. L. Lundsberg-Nielsen

    Present address: Danish Institute of Fundamental Metrology, DK-2800, Lyngby, Denmark

Authors and Affiliations

  1. The Niels Bohr Institute, University of Copenhagen, DK-4000, Roskilde, Denmark

    J. Pedersen, J. Borggreen, P. Chowdhury, N. Kebaïli, L. Lundsberg-Nielsen, K. Lützenkirchen, M. B. Nielsen & H. D. Rasmussen

Authors
  1. J. Pedersen
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  2. J. Borggreen
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  3. P. Chowdhury
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  4. N. Kebaïli
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  5. L. Lundsberg-Nielsen
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  6. K. Lützenkirchen
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  7. M. B. Nielsen
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  8. H. D. Rasmussen
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Additional information

on leave from Yale University, New Haven, CT 06511, U.S.A.

on leave from Laboratoire Aimé Cotton, CNRS II, F-91405 Orsay, France

on leave from Institut für Kernchemie, Universität Mainz, D-6500 Mainz, Germany

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Pedersen, J., Borggreen, J., Chowdhury, P. et al. Plasmon profiles and shapes of sodium cluster ions. Z Phys D - Atoms, Molecules and Clusters 26, 281–283 (1993). https://doi.org/10.1007/BF01429169

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  • DOI: https://doi.org/10.1007/BF01429169

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