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Numerical calculations on the electron-phonon system in sodium

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Physik der kondensierten Materie

Abstract

Numerical results are given for the phonon contribution to the electron self-energy in sodium. The importance of including in detail the phonon properties is stressed. Anisotropy in the effective mass and in the damping of an electron is investigated. Most of the calculations are at zero temperature, but the imaginary part of the self energy is calculated for several values of the temperature.

Résumé

On présente des calculs numériques de la contribution des phonons á la selfenergie des électrons pour le sodium. C'est important de rendre compte des propriétés des phonons en detail. L'anisotropie de la masse effective et de l'amortissement d'un électron ont été étudié. La plupart des calculs a été faite pour la temperature zero, mais la partie imaginaire de l'énergie a été calculée pour plusieurs valeurs de la temperature.

Zusammenfassung

Numerische Resultate werden für den Phononenbeitrag zur Elektronen-Eigenenergie in Natrium angegeben. Die Wichtigkeit, Einzelheiten des Phononenspektrums einzuschließen, wird hervorgehoben. Anisotropie der effektiven Masse undder Elektronendämpfung wird untersucht. Die meisten Berechnungen werden für 0°K ausgeführt, der imaginäre Teil der Elektronenenergie wird jedoch für verschiedene Temperaturen berechnet.

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Authors and Affiliations

  1. Institute of Theoretical Physics, Chalmers Institute of Technology, Sven Hultins gata, Göteborg, Sweden

    Göran Grimvall

  2. Institute of Theoretical Physics, Göteborg University, Sven Hultins gata, Göteborg, Sweden

    Göran Grimvall

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  1. Göran Grimvall
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Grimvall, G. Numerical calculations on the electron-phonon system in sodium. Phys kondens Materie 6, 15–22 (1967). https://doi.org/10.1007/BF02422519

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  • DOI: https://doi.org/10.1007/BF02422519

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