New results for spin waves and the Leggett-Rice effect in /sup 3/He-/sup 4/He mixtures

Journal Article · Mon Jan 09 04:00:00 EST 1989 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.62.167· OSTI ID:6554556

Bedell, K S

Recent experiments on spin waves in /sup 3/He-/sup 4/He mixtures suggest that the interaction parameter lambda, where lambda = (1+F/sub 0//sup a/)/sup -1/-(1 +F/sub 1//sup a//3)/sup -1/, vanishes for a value of the /sup 3/He concentration between 3% and 5%. At this concentration some new features in the dispersion and attenuation of the spin-wave modes will appear. Moreover, when lambda = 0, the Leggett-Rice effect disappears. Measuring the dispersion of the spin-wave mode in this regime provides a unique experiment in which two Fermi-liquid parameters, F/sub 0//sup a/ and F/sub 1//sup a/, are obtained.

• Research Organization: Los Alamos National Laboratory, T-11, MS B262, Los Alamos, New Mexico 87545
• OSTI ID: 6554556
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 62:2; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATTENUATION
COUPLING
DISPERSION RELATIONS
DISPERSIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMI GAS
FLUIDS
GASES
HELIUM 3
HELIUM 4
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MIXTURES
NUCLEI
QUANTITY RATIO
SPIN WAVES
STABLE ISOTOPES