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Investigation of surface plasma resonances in small sodium clusters

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Zeitschrift für Physik D Atoms, Molecules and Clusters

Abstract

Photoabsorption cross sections of small neutral sodium clusters are measured at wavelengths from 452 to 604 nm. We find that surface plasma oscillations of the valence electrons dominate the photoabsorption spectra. The experimental results are consistent with predictions based on an extended Clemenger-Nilsson model, general sum rules, and the experimental static electric polarizabilities. For Na8 a single broad resonance is observed, the peak wavelength is in excellent agreement with the model. The data for Na9 and Na10 support the prediction of double resonances.

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Author notes

  1. M. Vollmer

    Present address: Physikalisches Institut der Universität Heidelberg, D-6900, Heidelberg 1, Federal Republic of Germany

  2. J. Masui

    Present address: Department of Physics, Cornell University, 14853, Ithaca, NY, USA

  3. W. A. de Heer

    Present address: Institut de Physique Expérimentale, Ecole Polytechnique Fédérale de Lausanne, PHB-Ecublens, CH-1015, Lausanne, Switzerland

Authors and Affiliations

  1. Department of Physics, University of California, 94720, Berkeley, CA, USA

    K. Selby, M. Vollmer, J. Masui, V. Kresin, W. A. de Heer & W. D. Knight

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  1. K. Selby
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  2. M. Vollmer
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  3. J. Masui
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  4. V. Kresin
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  5. W. A. de Heer
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  6. W. D. Knight
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Selby, K., Vollmer, M., Masui, J. et al. Investigation of surface plasma resonances in small sodium clusters. Z Phys D - Atoms, Molecules and Clusters 12, 477–479 (1989). https://doi.org/10.1007/BF01427001

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  • DOI: https://doi.org/10.1007/BF01427001

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