Damping of second sound near the superfluid transition of /sup 4/He under pressure

Journal Article · Mon Dec 05 04:00:00 EST 1983 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.51.2116· OSTI ID:5267703

Mehrotra, R; Ahlers, G

New measurements of the damping D/sub 2/ of second sound in /sup 4/He near T/sub lambda/ which are a factor of 5 more precise than previous results are reported. They span a wide pressure range, whereas previous data existed only at vapor pressure. The pressure dependence of D/sub 2/ agrees well with renormalization-group theory predictions, but the detailed temperature dependence differs slightly from that predicted on the basis of the presently available theory.

• Research Organization: Department of Physics, University of California, Santa Barbara, California 93106
• OSTI ID: 5267703
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 51:23; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATTENUATION
CORRELATIONS
CRITICAL TEMPERATURE
DATA
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
HELIUM 4
HELIUM ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
NUCLEI
NUMERICAL DATA
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
SECOND SOUND
STABLE ISOTOPES
SUPERFLUIDITY
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE