Kinetic properties of solid 3He–4He mixtures in themodel of freely moving impuritons

Within the framework of the gas-kinetic model of a mixture of weakly interacting gas ofquasiparticles—phonons and impurities—the dissipative properties of3He–4He solid solutions are considered: diffusion, self-diffusion,and thermal conductivity in the range of concentrations and temperatures, where...

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Bibliographic Details
Published in:Low temperature physics (Woodbury, N.Y.) N.Y.), 2022-08, Vol.48 (8)
Main Authors: Herashchenko, N O, Nemchenko, E K, Nemchenko, K E, Vikhtinskaya, T G
Format: Article
Language:English
Subjects:
Dissipation
Elementary excitations
Heat transfer
Impurities
Mixtures
Self diffusion
Solid solutions
Thermal conductivity
Online Access:Get full text
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Summary:Within the framework of the gas-kinetic model of a mixture of weakly interacting gas ofquasiparticles—phonons and impurities—the dissipative properties of3He–4He solid solutions are considered: diffusion, self-diffusion,and thermal conductivity in the range of concentrations and temperatures, where impuritiesof 3He can be considered as quasiparticles freely moving through the crystal.Explicit expressions are obtained for the dissipative coefficients of spin and massdiffusion and the coefficient of thermal conductivity. The observed in experiments on spinrelaxation, heat transfer, and separation of solutions dependencies and parameters ofquasiparticles are discussed.
ISSN:1063-777X
1090-6517