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Self-consistent treatment of the polaron damping in the Holstein model

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Zeitschrift für Physik B Condensed Matter

Abstract

Using the Holstein model, the damping of the localized polaron state and the small polaron conductivity are represented by the series of contributions from the multiphonon processes in which the polaron damping is taken into account. The self-consistent treatment of the damping shows the enhancement of the small-polaron relaxation rate by the quantum fluctuations of the lattice corresponding to the energy non-conserving phonon processes. The conditions for the polaron localization as well as the dependence of the d.c. conductivity on the electron transfer integral are discussed.

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Authors and Affiliations

  1. Institute of Physics, Czech Academy of Sciences, Cukrovarnická 10, 16200, Prague, Czech Republic

    J. Loos

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  1. J. Loos
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Loos, J. Self-consistent treatment of the polaron damping in the Holstein model. Z. Physik B - Condensed Matter 92, 377–382 (1993). https://doi.org/10.1007/BF01308757

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  • DOI: https://doi.org/10.1007/BF01308757

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