Strong-coupling effects in superfluid /sup 3/He

Journal Article · Wed Dec 01 04:00:00 EST 1976 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00657284· OSTI ID:7227624

Kuroda, Y; Nagi, A D.S.

Using a plausible approximation for the normal-state vertex function, the strong-coupling corrections delta F/sub SC/ to the free energy of superfluid /sup 3/He are calculated. Delta F/sub SC/ is expressed in terms of the Fermi liquid scattering amplitudes A/sub 0/, A/sub 1/, B/sub 0/, and B/sub 1/ and the invariant combinations of the order parameter. Calculations are also performed for the jump in specific heat at T/sub c/ for the A/sub 1/, Balian-Werthamer (BW), and Anderson-Brinkman-Morel (ABM) states, the initial slope of the superfluid mass density and nuclear spin susceptibility in the BW and AMB states vs. T/T/sub c/ at T/sub c/, the initial slope of the T/sub AB/ line vs. pressure at the polycritical point, and the effect of a small magnetic field on the T/sub AB/ line. The calculated values of all the above properties are in reasonable agreement with the experimental ones.

• Research Organization: Univ. of Waterloo, Ont.
• OSTI ID: 7227624
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 25:5/6; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CORRECTIONS
COUPLING
ENERGY
EVEN-ODD NUCLEI
FERMI GAS
FREE ENERGY
FUNCTIONS
HELIUM 3
HELIUM 3 A
HELIUM 3 B
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETIC FIELDS
MATHEMATICAL MODELS
NUCLEI
ORDER PARAMETERS
PHYSICAL PROPERTIES
SPECIFIC HEAT
STABLE ISOTOPES
THERMODYNAMIC PROPERTIES
VERTEX FUNCTIONS