Critical currents in bulk superfluid /sup 3/He-A

Journal Article · Sat Aug 01 04:00:00 EDT 1981 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.24.1181· OSTI ID:6213482

Fetter, A L

The stability of uniform textures in superfluid /sup 3/He-A is studied with the phenomenological equations of orbital dynamics. For a fixed applied magnetic field, the texture becomes dynamically unstable at a critical current that depends both on the field H and on the angle chi between the flow and the field. In addition, the instability signals a deformation with a finite wave vector (not, in general, parallel to l) that also depends on H and chi. Beyond thresholds, the unstable amplitude does not saturate at some nearby small deformation but instead experiences catastrophic nonlinear growth. Comparison with recent observations suggests other possible experiments.

• Research Organization: Institute of Theoretical Physics, Department of Physics, Stanford University, Stanford, California 94305
• OSTI ID: 6213482
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 24:3; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COOPER PAIRS
CRITICAL CURRENT
CURRENTS
ELECTRIC CURRENTS
EVEN-ODD NUCLEI
FLUID MECHANICS
HELIUM 3
HELIUM 3 A
HELIUM ISOTOPES
HYDRODYNAMICS
INSTABILITY
ISOTOPES
LIGHT NUCLEI
MAGNETIC FIELDS
MECHANICS
NONLINEAR PROBLEMS
NUCLEI
ORDER PARAMETERS
STABLE ISOTOPES