Has two-dimensional superfluidity been seen in real /sup 4/He films

Journal Article · Mon Oct 23 04:00:00 EDT 1978 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.41.1178· OSTI ID:6578417

Dash, J G

The theory of two-dimensional superfluidity by Nelson and Kosterlitz is examined in the context of ideal interacting /sup 4/He films. It is shown that superfluid onset in a film on a uniform surface would have a critical-temperature gap due to phase condensation. No experiments on uniform or heterogeneous substrates have disclosed any gap, indicating that superfluid onset in experimental films may have another origin.

• Research Organization: Physics Department, University of Washington, Seattle, Washington 98195
• OSTI ID: 6578417
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 41:17; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRITICAL TEMPERATURE
EVEN-EVEN NUCLEI
FILMS
FLUIDS
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
QUANTUM FLUIDS
STABLE ISOTOPES
SUPERFLUIDITY
SURFACES
THERMODYNAMIC PROPERTIES
THIRD SOUND
TRANSITION TEMPERATURE