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This article is cited in 1 scientific paper (total in 1 paper)
Semiconductors
Influence of focusing on phonon propagation and thermal conductivity in single crystal films with different types of anisotropy of elastic energy
I. I. Kuleyev Institute of Metal Physics, Ural Division of the Russian Academy of Sciences, Ekaterinburg
Abstract:
The influence of the anisotropy of elastic energy on the phonon propagation and phonon transport in single crystal nanofilms with different types of anisotropy of elastic energy in a Knudsen flow of a phonon gas is studied. The angular distribution of phonon mean free paths in the planes of the films and in their cross section is analyzed. The physical reasons leading to the dependence of the thermal conductivity on the orientation of the film planes and the directions of the heat flux relative to the crystal axes are studied. An analysis of the effect of focusing on the phonon propagation made it possible to explain the qualitative difference between the anisotropy of phonon mean free paths in films of cubic nanocrystals of various types having different orientations of the planes.
Received: 15.03.2017 Revised: 29.11.2017
Citation:
I. I. Kuleyev, “Influence of focusing on phonon propagation and thermal conductivity in single crystal films with different types of anisotropy of elastic energy”, Fizika Tverdogo Tela, 60:5 (2018), 868–874; Phys. Solid State, 60:5 (2018), 870–876
Linking options:
https://www.mathnet.ru/eng/ftt9190 https://www.mathnet.ru/eng/ftt/v60/i5/p868
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