Undamped second-sound waves in a /sup 3/He-/sup 4/He mixture heated from below

Journal Article · Mon Dec 22 04:00:00 EST 1980 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.45.2050· OSTI ID:6635445

Steinberg, V

By using a thermodynamic analysis, it is shown that a horizontal layer of the /sup 3/He-/sup 4/He superfluid mixture heated from below is unstable with respect to oscillatory convection. The neutral oscillations of this overstability are undamped standing second-sound waves. Estimates show the possibility to observe the predicted effect experimentally in the vicinity of the tricritical point of /sup 3/He-/sup 4/He mixture.

• Research Organization: Department of Physics and Astronomy, Tel Aviv University, Ramat Aviv, Israel
• OSTI ID: 6635445
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 45:25; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CONVECTION
DISPERSIONS
EQUATIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FLUID MECHANICS
HEATING
HELIUM 3
HELIUM 4
HELIUM ISOTOPES
HYDRODYNAMICS
INSTABILITY
ISOTOPES
LAYERS
LIGHT NUCLEI
MECHANICS
MIXTURES
NUCLEI
OSCILLATIONS
SECOND SOUND
STABLE ISOTOPES