Phonon scattering and heat transfer by “diffusive” modes in solid C₆H₆
The isochoric thermal conductivity of solid C₆H₆ is described within a model in which the heat is transferred by phonons and above the phonon mobility edge by “diffusive” modes migrating randomly from site to site. The mobility edge ω₀ is found from the condition, that the phonon mean-free path re...
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| Date: | 2006 |
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| Main Authors: | , |
| Format: | Article |
| Language: | English |
| Published: |
Інститут фізики конденсованих систем НАН України
2006
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| Series: | Condensed Matter Physics |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/121451 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Phonon scattering and heat transfer by “diffusive” modes in solid C₆H₆ / O.I. Pursky, V.A. Konstantinov // Condensed Matter Physics. — 2006. — Т. 9, № 4(48). — С. 709–717. — Бібліогр.: 25 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | The isochoric thermal conductivity of solid C₆H₆ is described within a model in which the heat is transferred
by phonons and above the phonon mobility edge by “diffusive” modes migrating randomly from site to site.
The mobility edge ω₀ is found from the condition, that the phonon mean-free path restricted by the examined
mechanisms of scattering cannot become smaller than half the wavelength. The contributions of phononphonon,
one and two-phonon scattering to the total thermal resistance of solid C₆H₆ are calculated under
the assumption of additive contribution of different scattering mechanisms. Significant deviations from the
dependence Λ ∝1/T are explained by thermal conductivity approaching its lower limit. |
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