Phase slippage experiments in superfluid sup 3 He-A

Conference · Wed Oct 25 00:00:00 EDT 1989 · AIP Conference Proceedings (American Institute of Physics); (USA)

OSTI ID:6829451

Avenel, O ^[1]; Varoquaux, E ^[2]

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1. DPhG/PSRM, CEN-Saclay, 91191 Gif-Sur-Yvette Cedex, France (FR)
2. Laboratoire de Physique des Solides, 91405 Orsay (France)

Phase slippage experiments similar to those already performed in {sup 4}He first, and then in low pressure {sup 3}He-B, have been extended to the A and B phases at 28.4 bar. The observed staircase patterns show very analogous features in both phases. The state of the superfluid in the micro-orifice is thus likely to be independent of which phase prevails in the bulk liquid. Critical currents in the micro-orifice are large and in broad agreement with Kurkijaervi's calculations. A new low-level periodic pattern has also been discovered, which we attribute tentatively to textural effects.

• OSTI ID: 6829451
• Report Number(s): CONF-8904257--
• Journal Information: AIP Conference Proceedings (American Institute of Physics); (USA), Journal Name: AIP Conference Proceedings (American Institute of Physics); (USA) Vol. 194:1; ISSN 0094-243X; ISSN APCPC
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRITICAL CURRENT
CRITICAL TEMPERATURE
CURRENTS
ELECTRIC CURRENTS
EVEN-ODD NUCLEI
HELIUM 3
HELIUM 3 A
HELIUM 3 B
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MECHANICS
NUCLEI
OPENINGS
ORIFICES
PHYSICAL PROPERTIES
PRESSURE MEASUREMENT
QUANTUM MECHANICS
STABLE ISOTOPES
THERMODYNAMIC PROPERTIES
TIME DEPENDENCE
TRANSITION TEMPERATURE
VORTICES