Splitting of the squashing collective mode of superfluid /sup 3/He-B by a magnetic field

Journal Article · Mon Oct 10 00:00:00 EDT 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.61.1732· OSTI ID:6763467

Movshovich, R; Varoquaux, E; Kim, N; Lee, D M

Pulse--time-of-flight sound propagation (group velocity) studies of the squashing mode of superfluid /sup 3/He-B in a magnetic field have revealed four of the five expected Zeeman sublevels for this J = 2/sup -/ mode. Variation of the pressure at very low temperatures (T/T/sub c/less than or equal to0.35) was used to sweep through the squashing mode at constant frequency (137.6 MHz). Observation of very low group velocities (down to approx.6 m/s) and pulse-shape analysis enabled the identification of the J/sub z/ = +2, +1, 0, and -1 sublevels. The Lande g factor was found to be 0.042 near T = 0 and P = 19 bars as determined from the linear dependence of the J/sub z/ = +2 Zeeman component.

• Research Organization: The Laboratory of Atomic and Solid State Physics and the Materials Science Center, Cornell University, Ithaca, New York 14853
• OSTI ID: 6763467
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 61:15
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HELIUM 3 B
COLLECTIVE EXCITATIONS
ACOUSTIC MEASUREMENTS
LINE BROADENING
MAGNETIC FIELDS
PULSES
SOUND WAVES
SUPERFLUIDITY
TIME-OF-FLIGHT METHOD
ZEEMAN EFFECT
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXCITATION
HELIUM 3
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
STABLE ISOTOPES
640450* - Fluid Physics- Superfluidity