Pulsed NMR studies of superfluid /sup 3/He

Journal Article · Sun Nov 01 00:00:00 EST 1981 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00655136· OSTI ID:5839599

Giannetta, R W; Smith, E N; Lee, D M

We present a review of our pulsed NMR experiments in the A and B phases of superfluid /sup 3/He, at pressures of 23 and 27 bar. We have measured the dipole frequency in /sup 3/He-A, spin susceptibility in /sup 3/He-B, and tip-angle-dependent frequency shifts in both phases. In general, we find excellent agreement with results by other workers. In /sup 3/He-B, complex spin motions were observed involving long-lived free induction decays with a time-dependent precession frequency. Spin relaxation measurements for both /sup 3/He-A and /sup 3/He-B are discussed and compared with those of other workers. After driving the magnetization far from equilibrium, anomalous frequency shifts were found to persist in the A phase. We discuss a soliton-texture model by Bruinsma and Maki which accounts for these resonances.

• Research Organization: Laboratory of Atomic and Solid State Physics and Materials Science Center, Cornell University, Ithaca, New York
• OSTI ID: 5839599
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 45:3; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM
EVEN-ODD NUCLEI
HELIUM 3
HELIUM 3 A
HELIUM 3 B
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MEDIUM PRESSURE
NUCLEAR MAGNETIC RESONANCE
NUCLEI
PARTICLE PROPERTIES
PULSES
QUASI PARTICLES
RELAXATION
RESONANCE
SOLITONS
SPECTRAL SHIFT
SPIN
STABLE ISOTOPES