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  1. 1 Acta Physica Polonica A

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  1. 1 2011

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  1. 1 Jaćimovski S.

  2. 1 Raković D.

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Thermodynamic Characteristics of 1D Structures

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Jaćimovski S., Raković D.
Acta Physica Polonica A
|
2011
|
vol. 120
|
issue 2
231-233
EN
In this paper 1D crystal lattice is analyzed within harmonic approximation, with one atom per elementary cell and nearest neighbor interaction included. For this type of crystal lattice dispersion relations are well known. Thermodynamic functions (specific heat and phonon thermal conductivity) are calculated via phonon density of states given in exact form. Thermodynamic variables are calculated for a whole temperature range. In limiting cases of low and high temperatures these thermodynamic variables can be found in analytic forms. For thermal conductivity the results of Callaway model for exact phonon density of states are compared with the results of Callaway model for Debye approximation of phonon density of states.
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