Superfluid onset in /sup 4/He films adsorbed on pyrolytic graphite

Journal Article · Thu Apr 01 04:00:00 EST 1982 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00682016· OSTI ID:5383434

Yuyama, J

Third-sound velocities and superfluid onsets have been studied for /sup 4/He films adsorbed on pyrolytic graphite. The present onset data are compared with previous experiments on graphite substrates. The third-sound onset data are found to be significantly different from superfluid mass-flow and heat-flow data. A value of 3.19 +- 0.52 x 10/sup -9/ g cm/sup -2/ K/sup -1/ is obtained for the superfluid arreal density at onset divided by the transition temperature. This value is consistent with the Kosterlitz-Thouless-Nelson picture of the phase transition in a two-dimensional superfluid.

• Research Organization: Department of Physics, Faculty of Science, Hokkaido University, Sapporo, Japan
• OSTI ID: 5383434
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 47:1; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ADSORPTION
CARBON
DATA
ELEMENTAL MINERALS
ELEMENTS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FILMS
FLUIDS
GRAPHITE
HELIUM 4
HELIUM II
HELIUM ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
MINERALS
NONMETALS
NUCLEI
NUMERICAL DATA
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PYROLYTIC CARBON
QUANTUM FLUIDS
SORPTION
SORPTIVE PROPERTIES
STABLE ISOTOPES
SUPERFLUIDITY
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
THIRD SOUND
VAPOR PRESSURE
VELOCITY