Journal
LOW TEMPERATURE PHYSICS
Volume 48, Issue 8, Pages 583-588Publisher
AIP Publishing
DOI: 10.1063/10.0012645
Keywords
quantum diffusion; quantum crystals; solid solutions He-3-He-4; impurities; phonons; diffusion; selfdiffusion; thermal conductivity
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Within the framework of the gas-kinetic model, the dissipative properties of He-3-He-4 solid solutions, including diffusion, self-diffusion, and thermal conductivity, are investigated. Experimental observations show dependencies among these properties and the parameters of quasiparticles.
Within the framework of the gas-kinetic model of a mixture of weakly interacting gas of quasiparticles-phonons and impurities-the dissipative properties of He-3-He-4 solid solutions are considered: diffusion, self-diffusion, and thermal conductivity in the range of concentrations and temperatures, where impurities of He-3 can be considered as quasiparticles freely moving through the crystal. Explicit expressions are obtained for the dissipative coefficients of spin and mass diffusion and the coefficient of thermal conductivity. The observed in experiments on spin relaxation, heat transfer, and separation of solutions dependencies and parameters of quasiparticles are discussed. Published under an exclusive license by AIP Publishing.
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