Low Temperature Physics: 29, 369 (2003); https://doi.org/10.1063/1.1542498 (4 pages)
Fizika Nizkikh Temperatur: Volume 29, Number 5 (May 2003), p. 496-500    ( to contents , go back )

Phonon scattering in ortho-para solid solutions of hydrogen (the role of configurational relaxation)

B.Ya. Gorodilov

B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Science of Ukraine, 47 Lenin Ave., Kharkov, 61103, Ukraine
E-mail: gorodilov@ilt.kharkov.ua
pos Анотація:

Received December 11, 2002, revised January 20, 2003

Abstract

The experimental results on thermal conductivity of ortho-para solutions of hydrogen are analyzed within the time-relaxation model. The analysis takes into account the configurational relaxation of the ortho-subsystem. The effect of the configurational relaxation on the thermal conductivity is considered from the standpoint of phonon scattering by clusters of ortho-molecule pairs with taking into account their rotational spectrum.

PACS:
66.70.+f - Nonelectronic thermal conduction and heat-pulse propagation in solids; thermal waves (for thermal conduction in metals and alloys, see 72.15.Cz and 72.15.Eb)
67.80.Gb - Thermal properties
67.80.Mg - Defects, impurities, and diffusion

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