Isochoric thermal conductivity of solid nitrogen
The isochoric thermal conductivity of solid nitrogen has been investigated on four samples of different densities in the temperature interval from 20 K to the onset of melting. In α-N₂ the isochoric thermal conductivity exhibits a dependence weaker than Λ1/T; in β-N₂ it increases slightly with...
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| Date: | 2005 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Published: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2005
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| Series: | Физика низких температур |
| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/121462 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Isochoric thermal conductivity of solid nitrogen / V.A. Konstantinov, V.G. Manzhelii, V.P. Revyakin, V.V. Sagan // Физика низких температур. — 2005. — Т. 31, № 5. — С. 553-557. — Бібліогр.: 12 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | The isochoric thermal conductivity of solid nitrogen has been investigated on four samples of
different densities in the temperature interval from 20 K to the onset of melting. In α-N₂ the
isochoric thermal conductivity exhibits a dependence weaker than Λ1/T; in β-N₂ it increases
slightly with temperature. The experimental results are discussed within a model in which the heat
is transported by low-frequency phonons or by «diffusive» modes above the mobility edge. The
growth of the thermal conductivity in β-N₂ is attributed to the decreasing «rotational» component
of the total thermal resistance, which occurs as the rotational correlations between the neighboring
molecules become weaker. |
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