The effect of van der Waals-type interactions in metals: A pseudopotential model |
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Authors: | W. Schommers |
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Affiliation: | (1) Kernforschungszentrum Karlsruhe, Institut für Angewandte Kernphysik, Postfach 3640, 75 Karlsruhe, Federal Republic of Germany |
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Abstract: | A model has been developed for the long-range part of the ion-ion interaction of simple metallic many-particle systems. The investigation is based on the local pseudopotential theory. The essential point in the examination is the consideration of interactions of van der Waals-type in the determination of the direct ion-ion potential and the ion-electron pseudopotential. Numerical calculations performed for liquid rubidium near the melting point show that these interactions are distinctly reflected in the long-range part of the ion-ion potential. The reference potential used in the study had been calculated without parameters by means of the experimentally determined pair correlation function. |
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