Static and dynamic elastic moduli in the Thomas Fermi model |
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Authors: | G Leibfried H R Schober |
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Institution: | 1. Institut für Festk?rperforschung der Kernforschungsanlage Jülich, Germany
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Abstract: | If one uses perturbation theory for the electronic contributions, the elastic moduli obtained from static deformations and from lattice vibrations do not agree in the same order 1, 2]. The reason for this is shown by employing a very simple lattice model: Thomas-Fermi-Theory for the electrons, Coulomb interaction and additive central force interaction between ions. |
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