Observation of new structure in the collective mode spectrum of zero sound in /sup 3/He-B

Journal Article · Wed Jun 01 04:00:00 EDT 1983 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.27.6988· OSTI ID:6117808

Daniels, M E; Dobbs, E R; Saunders, J; Ward, P L

The attenuation of zero sound in the range 4 to 165 cm/sup -1/ at 44--54 MHz has been measured in superfluid /sup 3/He-B at pressures of 1.36 and 2.44 bars and temperatures down to 0.72T/sub c/. New structure has been found in the temperature dependence of the acoustic attenuation in the vicinity of the pair-breaking cutoff which we interpret as due to the predicted J = 4/sup -/ and J = 0/sup +/ modes. The existence of the former mode depends on significant l>1 components of the pairing interaction.

• Research Organization: Department of Physics, Bedford College, Regent's Park, London NW1 4NS, United Kingdom
• OSTI ID: 6117808
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 27:11; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM
ATTENUATION
COOPER PAIRS
EVEN-ODD NUCLEI
FREQUENCY RANGE
HELIUM 3
HELIUM 3 B
HELIUM ISOTOPES
HZ RANGE
ISOTOPES
LIGHT NUCLEI
MEDIUM PRESSURE
NUCLEI
ORDER PARAMETERS
QUANTUM NUMBERS
STABLE ISOTOPES
TEMPERATURE DEPENDENCE
TRANSDUCERS
ULTRALOW TEMPERATURE
ZERO SOUND