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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| Дата: | 2006 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
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Інститут фізики конденсованих систем НАН України
2006
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/121451 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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. |
Репозитарії
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irk-123456789-1214512017-06-15T03:04:23Z Phonon scattering and heat transfer by “diffusive” modes in solid C₆H₆ Pursky, O.I. Konstantinov, V.A. 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. Iзохорна теплопровiднiсть твердого C₆H₆ описується в рамках моделi, в якiй тепло переноситься фононами, а вище вiд граничної рухливостi – “дифузними” модами, що мiгрують випадковим чином з вузла на вузол. Границя фононної рухливостi ω₀ знаходиться iз умови, що довжина вiльного пробiгу фононiв, котра визначається розглянутими механiзмами розсiяння фононiв, не може стати меншою половини довжини хвилi. Внески фонон-фононного, одно та дво-фононного розсiяння в повний тепловий опiр твердого C₆H₆ розраховано в припущеннi адитивностi внескiв рiзних механiзмiв фононного розсiяння. Значнi вiдхилення вiд залежностi Λ ∝1/T пояснюються наближенням теплопровiдностi до її нижньої границi. 2006 Article 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. 1607-324X PACS: 66.70+f, 63.20.Ls DOI:10.5488/CMP.9.4.709 http://dspace.nbuv.gov.ua/handle/123456789/121451 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
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. |
| format |
Article |
| author |
Pursky, O.I. Konstantinov, V.A. |
| spellingShingle |
Pursky, O.I. Konstantinov, V.A. Phonon scattering and heat transfer by “diffusive” modes in solid C₆H₆ Condensed Matter Physics |
| author_facet |
Pursky, O.I. Konstantinov, V.A. |
| author_sort |
Pursky, O.I. |
| title |
Phonon scattering and heat transfer by “diffusive” modes in solid C₆H₆ |
| title_short |
Phonon scattering and heat transfer by “diffusive” modes in solid C₆H₆ |
| title_full |
Phonon scattering and heat transfer by “diffusive” modes in solid C₆H₆ |
| title_fullStr |
Phonon scattering and heat transfer by “diffusive” modes in solid C₆H₆ |
| title_full_unstemmed |
Phonon scattering and heat transfer by “diffusive” modes in solid C₆H₆ |
| title_sort |
phonon scattering and heat transfer by “diffusive” modes in solid c₆h₆ |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2006 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/121451 |
| citation_txt |
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. |
| series |
Condensed Matter Physics |
| work_keys_str_mv |
AT purskyoi phononscatteringandheattransferbydiffusivemodesinsolidc6h6 AT konstantinovva phononscatteringandheattransferbydiffusivemodesinsolidc6h6 |
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2023-10-18T20:39:29Z |
| last_indexed |
2023-10-18T20:39:29Z |
| _version_ |
1796150771336609792 |