Theory of Lattice Thermal Conductivity of Anharmonic Crystals with Impurities. (II). Interference Effects
| Autor: | G. S. Zavt, V. I. Altukhov |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
Physics
Phonon scattering Condensed matter physics Phonon Scattering Anharmonicity Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Resonant scattering Electronic Optical and Magnetic Materials Lattice thermal conductivity Interference (communication) Impurity Condensed Matter::Superconductivity Condensed Matter::Strongly Correlated Electrons |
| Zdroj: | physica status solidi (b). 65:83-92 |
| ISSN: | 1521-3951 0370-1972 |
| DOI: | 10.1002/pssb.2220650106 |
| Popis: | The interference of the anharmonic and impurity scattering of phonons is investigated. In particular, a general formula is obtained for the resonant scattering of phonons by impurities taking into account the inelastic channel which is responsible for the temperature dependence of the total cross-section of impurity scattering. It is found that the anharmonic scattering is decreased by interference effects. The latter is connected with the finite life-time of the phonons scattered by impurities. The case of resonant scattering of phonons by isotopic defects is considered in detail. [Russian Text Ignored] |
| Databáze: | OpenAIRE |
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