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dc.contributor.author |
Krivchikov, A.I. |
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dc.contributor.author |
Sumarokov, V.V. |
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dc.contributor.author |
Mucha, J. |
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dc.contributor.author |
Stachowiak, P. |
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dc.contributor.author |
Jezowski, A. |
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dc.contributor.author |
Korolyuk, O.A. |
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dc.date.accessioned |
2018-01-14T11:04:15Z |
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dc.date.available |
2018-01-14T11:04:15Z |
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dc.date.issued |
2003 |
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dc.identifier.citation |
Thermal conductivity of solid parahydrogen with methane admixtures / A.I. Krivchikov, V.V. Sumarokov, J. Mucha, P. Stachowiak, A. Jezowski, O.A. Korolyuk // Физика низких температур. — 2003. — Т. 29, № 6. — С. 706-709. — Бібліогр.: 18 назв. — англ. |
uk_UA |
dc.identifier.issn |
0132-6414 |
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dc.identifier.other |
PACS: 66.70.+f, 67.80.Gb, 67.80.Mg |
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dc.identifier.uri |
http://dspace.nbuv.gov.ua/handle/123456789/128871 |
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dc.description.abstract |
The thermal conductivity of solid parahydrogen crystal with methane admixtures has been measured in the temperature range 1.5 to 8 K. Solid samples were grown from the gas mixture at 13 K. Concentration of CH₄ admixture molecules in the gas varied from 5 to 570 ppm. A very broad maximum of thermal conductivity with absolute value of about 110 W/(m×K) is observed at 2.6 K. The data are interpreted by Callaway model considering phonons resonant scattering on quasi-local vibrations of CH₄ molecules, phonon-grain boundary and phonon-phonon scattering processes. The increase of grain boundary scattering leads to the decrease of the maximum broadening. The analysis shows that the solid mixture of p-H₂ and CH₄ is a heterogeneous solution for CH₄ concentration higher than 0.1 ppm. |
uk_UA |
dc.description.sponsorship |
We are grateful to Prof. V.G. Manzhelii, Dr. B.Ya. Gorodilov for helpful discussions. The study described in this publication was made possible in part Grant N 2M/78-2000 of Ukrainian Min. of Education and Science. |
uk_UA |
dc.language.iso |
en |
uk_UA |
dc.publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
uk_UA |
dc.relation.ispartof |
Физика низких температур |
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dc.subject |
3-й Международный семинар по физике низких температур в условиях микрогравитации |
uk_UA |
dc.title |
Thermal conductivity of solid parahydrogen with methane admixtures |
uk_UA |
dc.type |
Article |
uk_UA |
dc.status |
published earlier |
uk_UA |
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