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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2014

Microscopic Description of Thermal Phonon Coherence : From Coherent Transport to Diffuse Interface Scattering in Superlattices

Résumé

We demonstrate the existence of a coherent transport of thermal energy in superlattices by introducing a microscopic definition of the phonon coherence length. A criterion is provided to distinguish the coherent transport regime from diffuse interface scattering and discuss how these can be specifically controlled by several physical parameters. Our approach provides a convenient framework for the interpretation of previous thermal conductivity measurements and calculations; it also paves the way for the design of a new class of thermal interface materials.
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hal-01285868 , version 1 (09-03-2016)

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Benoit Latour, Sebastian Volz, Yann Chalopin. Microscopic Description of Thermal Phonon Coherence : From Coherent Transport to Diffuse Interface Scattering in Superlattices. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2014, 90 (1), ⟨10.1103/physrevb.90.014307⟩. ⟨hal-01285868⟩
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