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Adiabatic and isothermal elastic constants for highly anharmonic crystals

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Physics of condensed matter

Abstract

The mass operator of the phonon Green function for a highly anharmonic crystal in the ladder approximation is derived. In order to calculate the mass operator in the collision-dominated regime it is necessary to solve the Boltzmann-like equations. These solutions allow us to find the thermal conductivity coefficient and to prove that the thermodynamic relation between adiabatic and isothermal elastic constants is satisfied.

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Authors and Affiliations

  1. Institute of Theoretical Physics, University of Wroclaw, ul. Cybulskiego 36, 50-205, Wroclaw, Poland

    T. Paszkiewicz

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  1. T. Paszkiewicz
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Paszkiewicz, T. Adiabatic and isothermal elastic constants for highly anharmonic crystals. Phys cond Matter 18, 1–15 (1974). https://doi.org/10.1007/BF01950498

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  • DOI: https://doi.org/10.1007/BF01950498

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