Thermal conductivity of solid krypton with methane admixture

The thermal conductivity of CH 4 –Kr solid solutions is investigated at CH 4 concentrations 0.2–5.0% in the temperature range 1.8–40 K. It is found that the temperature dependence of the thermal conductivity has features typical of resonance phonon scattering. The analysis of the experimental result...

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Bibliographic Details
Published in:Low temperature physics (Woodbury, N.Y.) N.Y.), 2000-09, Vol.26 (9), p.762-766
Main Authors: Dudkin, V. V., Gorodilov, B. Ya, Krivchikov, A. I., Manzhelii, V. G.
Format: Article
Language:English
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Summary:The thermal conductivity of CH 4 –Kr solid solutions is investigated at CH 4 concentrations 0.2–5.0% in the temperature range 1.8–40 K. It is found that the temperature dependence of the thermal conductivity has features typical of resonance phonon scattering. The analysis of the experimental results shows that the main contribution to the impurity-caused scattering of phonons is made by the scattering on rotational excitations of the nuclear spin T-species of CH 4 molecules. The phonon–rotation interaction parameter is estimated.
ISSN:1063-777X
1090-6517
DOI:10.1063/1.1312405