By the use of an iterative method the linearized phonon-Boltzmann equation for a dielectric solid subjected to a thermal gradient is solved in the frame of three-phonon interactions. In this way it is possible to calculate the thermal conductivity of rare-gas solids starting from the pair potential and accounting for the real Brillouin zone of the lattice. The numerical results are in full agreement with experiment and represent a considerable improvement with respect to those previously deduced for an isotropic solid.
Beyond the isotropic model approximation in the theory of thermal conductivity / Omini, M.; Sparavigna, Amelia Carolina. - In: PHYSICAL REVIEW. B, CONDENSED MATTER. - ISSN 0163-1829. - STAMPA. - 53:14(1996), pp. 9064-9073. [10.1103/PhysRevB.53.9064]
Beyond the isotropic model approximation in the theory of thermal conductivity
SPARAVIGNA, Amelia Carolina
1996
Abstract
By the use of an iterative method the linearized phonon-Boltzmann equation for a dielectric solid subjected to a thermal gradient is solved in the frame of three-phonon interactions. In this way it is possible to calculate the thermal conductivity of rare-gas solids starting from the pair potential and accounting for the real Brillouin zone of the lattice. The numerical results are in full agreement with experiment and represent a considerable improvement with respect to those previously deduced for an isotropic solid.Pubblicazioni consigliate
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https://hdl.handle.net/11583/1406019
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