Vortex diffusivity in two-dimensional helium films

Journal Article · Sun Jan 01 23:00:00 EST 1984 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.52.53· OSTI ID:5004199

Kim, M; Glaberson, W I

The first measurements of vortex diffusivity in two-dimensional superfluid helium films are reported. The diffusivity appears to be a universal function of sigma/sub s//T, where sigma/sub s/ is the areal superfluid density, and is 0.4h/m at the Kosterlitz-Thouless transition. In contrast with theoretical expectations, the diffusivity is a rapidly increasing function of T/sigma/sub s/ near the transition temperature.

• Research Organization: Serin Physics Laboratory, Rutgers University, Piscataway, New Jersey 08854
• OSTI ID: 5004199
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 52:1; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DAMPING
DATA
DIFFUSION
ELEMENTS
EXPERIMENTAL DATA
FILMS
FLUID FLOW
FLUIDS
GASES
HELIUM
INFORMATION
NONMETALS
NUMERICAL DATA
PHYSICAL PROPERTIES
RARE GASES
SUPERFLUIDITY
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
THIN FILMS
THIRD SOUND
TRANSITION TEMPERATURE
VELOCITY
VORTEX FLOW