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Determination of the effective dielectric function of silver powders produced by inert gas evaporation

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Zeitschrift für Physik B Condensed Matter

Abstract

Silver powder samples were prepared by evaporation of silver in an inert gas atmosphere. They were investigated by dc-conductivity-, reflectance- and photoacoustic (PAS) measurements. Model spectra based on the Bergman ansatz for the effective dielectric function εeff, the effective thermal and electrical conductivities λeff, and σeff, were fitted to the experiments. Good agreement has been found assuming a spongily packed, only weakly percolating topology and an increased damping of the free carriers in the small particles (classical size effect).

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Author notes

  1. T. Eickhoff

    Present address: Institut für Schicht- und Ionentechnik (ISI), Forschungszentrum Jülich, Postfach 1913, W-5170, Julich, FRG

Authors and Affiliations

  1. I. Physikalisches Institut, RWTH, Sommerfeldstrasse, Turm 28, W-5100, Aachen, Federal Republic of Germany

    T. Eickhoff, P. Grosse, S. Henkel & W. Theiss

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  1. T. Eickhoff
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  2. P. Grosse
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  3. S. Henkel
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  4. W. Theiss
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Eickhoff, T., Grosse, P., Henkel, S. et al. Determination of the effective dielectric function of silver powders produced by inert gas evaporation. Z. Physik B - Condensed Matter 88, 17–23 (1992). https://doi.org/10.1007/BF01573833

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  • DOI: https://doi.org/10.1007/BF01573833

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