Second-sound absorption and dissipative processes in superfluid He/sup 3/--He/sup 4/ solutions

Journal Article · Mon Jan 01 04:00:00 EST 1979 · Sov. J. Low Temp. Phys. (Engl. Transl.); (United States)

OSTI ID:6092116

Dikina, L S; Kotenev, G Y; Rudavskii, E Y

Second-sound absorption was measured in superfluid He/sup 3/--He/sup 4/ solutions with an He/sup 3/ content up to 10% over the temperature range 1.3--2.0 /sup 0/K. The experimental data obtained were analyzed within the framework of hydrodynamic theory. It is shown that in weak solutions, just as in He/sup 4/, the major contribution to second-sound absorption is produced by thermal conductivity. With increase in concentration its effect becomes smaller than that of first viscosity and diffusion.

• Research Organization: Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR
• OSTI ID: 6092116
• Journal Information: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States) Vol. 5:1; ISSN SJLPD
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
DISPERSIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FLUID MECHANICS
FLUIDS
HELIUM 3
HELIUM 4
HELIUM II
HELIUM ISOTOPES
HYDRODYNAMICS
ISOTOPES
LIGHT NUCLEI
MECHANICS
MIXTURES
NUCLEI
PHYSICAL PROPERTIES
QUANTUM FLUIDS
SECOND SOUND
STABLE ISOTOPES
SUPERFLUIDITY
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
ULTRALOW TEMPERATURE
VISCOSITY