Influence of an orthodeuterium impurity on the thermal conductivity of solid parahydrogen
The thermal conductivity of solid parahydrogen with orthodeuterium impurity at the impurity concentration from 0.01 to 1% has been studied in the temperature range from 1.8 to 9 K. The nonlinear concentration dependence of the thermal resistivity of the investigated samples is explained by the fact...
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| Published in: | Физика низких температур |
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| Date: | 1999 |
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| Format: | Article |
| Language: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
1999
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/138996 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Influence of an orthodeuterium impurity on the thermal conductivity of solid parahydrogen / O.A. Korolyuk, B.Ya. Gorodilov, A.I. Krivchikov, V.G. Manzhelii // Физика низких температур. — 1999. — Т. 25, № 8. — С. 944-949. — Бібліогр.: 21 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
nasplib_isofts_kiev_ua-123456789-138996 |
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Korolyuk, O.A. Gorodilov, B.Ya. Krivchikov, A.I. Manzhelii, V.G. 2018-06-19T18:23:20Z 2018-06-19T18:23:20Z 1999 Influence of an orthodeuterium impurity on the thermal conductivity of solid parahydrogen / O.A. Korolyuk, B.Ya. Gorodilov, A.I. Krivchikov, V.G. Manzhelii // Физика низких температур. — 1999. — Т. 25, № 8. — С. 944-949. — Бібліогр.: 21 назв. — англ. 0132-6414 https://nasplib.isofts.kiev.ua/handle/123456789/138996 The thermal conductivity of solid parahydrogen with orthodeuterium impurity at the impurity concentration from 0.01 to 1% has been studied in the temperature range from 1.8 to 9 K. The nonlinear concentration dependence of the thermal resistivity of the investigated samples is explained by the fact that the intensity of normal three-phonon scattering processes is comparable to that of resistive processes. The analysis of the experimental results has been made in the framework of the Callaway model by using different models for the impurity phonon scattering. It has been found that the intensity of phonon impurity scattering in parahydrogen with orthodeuterium impurity is essentially higher than classical theory predicts and it is close to analogous scattering in solutions of helium isotopes with the equal reduced molar volume given. It is considered that additional impurity scattering of phonons is connected with the change of force constants and lattice distortion in the vicinity of impurity molecules. The quantitative estimation of the mentioned effects has been made. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Физические свойства криокристаллов Influence of an orthodeuterium impurity on the thermal conductivity of solid parahydrogen Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Influence of an orthodeuterium impurity on the thermal conductivity of solid parahydrogen |
| spellingShingle |
Influence of an orthodeuterium impurity on the thermal conductivity of solid parahydrogen Korolyuk, O.A. Gorodilov, B.Ya. Krivchikov, A.I. Manzhelii, V.G. Физические свойства криокристаллов |
| title_short |
Influence of an orthodeuterium impurity on the thermal conductivity of solid parahydrogen |
| title_full |
Influence of an orthodeuterium impurity on the thermal conductivity of solid parahydrogen |
| title_fullStr |
Influence of an orthodeuterium impurity on the thermal conductivity of solid parahydrogen |
| title_full_unstemmed |
Influence of an orthodeuterium impurity on the thermal conductivity of solid parahydrogen |
| title_sort |
influence of an orthodeuterium impurity on the thermal conductivity of solid parahydrogen |
| author |
Korolyuk, O.A. Gorodilov, B.Ya. Krivchikov, A.I. Manzhelii, V.G. |
| author_facet |
Korolyuk, O.A. Gorodilov, B.Ya. Krivchikov, A.I. Manzhelii, V.G. |
| topic |
Физические свойства криокристаллов |
| topic_facet |
Физические свойства криокристаллов |
| publishDate |
1999 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
The thermal conductivity of solid parahydrogen with orthodeuterium impurity at the impurity concentration from 0.01 to 1% has been studied in the temperature range from 1.8 to 9 K. The nonlinear concentration dependence of the thermal resistivity of the investigated samples is explained by the fact that the intensity of normal three-phonon scattering processes is comparable to that of resistive processes. The analysis of the experimental results has been made in the framework of the Callaway model by using different models for the impurity phonon scattering. It has been found that the intensity of phonon impurity scattering in parahydrogen with orthodeuterium impurity is essentially higher than classical theory predicts and it is close to analogous scattering in solutions of helium isotopes with the equal reduced molar volume given. It is considered that additional impurity scattering of phonons is connected with the change of force constants and lattice distortion in the vicinity of impurity molecules. The quantitative estimation of the mentioned effects has been made.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/138996 |
| citation_txt |
Influence of an orthodeuterium impurity on the thermal conductivity of solid parahydrogen / O.A. Korolyuk, B.Ya. Gorodilov, A.I. Krivchikov, V.G. Manzhelii // Физика низких температур. — 1999. — Т. 25, № 8. — С. 944-949. — Бібліогр.: 21 назв. — англ. |
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| first_indexed |
2025-12-07T18:31:22Z |
| last_indexed |
2025-12-07T18:31:22Z |
| _version_ |
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