Superfluid /sup 3/He in very confined regular geometries

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.38.2362· OSTI ID:6920618

Li, Y; Ho, T

Superfluid /sup 3/He in very narrow slab and cylindrical geometries is studied using the Ginzburg-Landau approach. It is found that, in the case of very narrow slabs, the effect of the boundary is to favor the formation of the A phase. At lower temperatures, this A phase is unstable against a deformed B phase. Both states are locally stable and can be supercooled or superheated. The phase diagram for /sup 3/He in a narrow slab resembles that of /sup 3/He in a magnetic field. The superfluid densities along the channel for both diffusive and specular boundary conditions are computed. Similar results are obtained for a cylindrical geometry. In addition, we present an analytic scheme for determining the order parameter in other geometries in the ''very strongly confined'' limit.

• Research Organization: Department of Physics, Ohio State University, Columbus, Ohio 43210
• OSTI ID: 6920618
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:4; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANALYTICAL SOLUTION
BOUNDARY CONDITIONS
CONFIGURATION
CONFINEMENT
CYLINDRICAL CONFIGURATION
DIAGRAMS
EVEN-ODD NUCLEI
GINZBURG-LANDAU THEORY
HELIUM 3
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETIC FIELDS
NUCLEI
ORDER PARAMETERS
PHASE DIAGRAMS
STABLE ISOTOPES
SUPERFLUIDITY