Effect of phonon scattering by isotope impurities on the thermal conductivity of dielectric solids
| Autor: | M. Omini, Amelia Carolina Sparavigna |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Materials science
Condensed matter physics Phonon scattering Scattering Phonon Dielectric Condensed Matter Physics Boltzmann equation Electronic Optical and Magnetic Materials symbols.namesake Thermal conductivity Isotropic solid symbols Electrical and Electronic Engineering Rayleigh scattering Nuclear Experiment |
| Zdroj: | Physica B: Condensed Matter. 233:230-240 |
| ISSN: | 0921-4526 |
| DOI: | 10.1016/s0921-4526(97)00296-2 |
| Popis: | By an iteration method which has recently been applied to perfect rare gas crystals, the phonon Boltzmann equation is solved for a dielectric isotropic solid subjected to a thermal gradient and containing isotope scattering centres. The solution avoids the use of the relaxation time approximation for three phonon collisions, and consequently provides a rigorous description of the interference effects between these collisions and Rayleigh scattering due to point impurities. Good agreement is found between theory and experiment for solid krypton, germanium and silicon. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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