Effect of dipolar fields in highly magnetized samples of liquid {sup 3}He-{sup 4}He mixtures

Journal Article · Wed Nov 01 04:00:00 EST 1995 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1007/BF00753400· OSTI ID:183456

Stoltz, E; Tannenhauser, J; Nacher, P J ^[1]

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1. Laboratoire Kastler Brossel, Paris (France)

NMR free induction decay signals obtained in highly polarized liquid {sup 3}He-{sup 4}He mixtures in a U-shaped cell and in a coil-shaped cell significantly differ from the signal one would obtain from independently precessing spins. We have analyzed the spin dynamics using two different models. Both consider the precession of the local magnetization in the dipolar field produced by the remainder of the sample. The first model explains the observed phenomena qualitatively; the second, solved numerically reproduces satisfactorily the structure of experimental spectra.

• Sponsoring Organization: USDOE
• OSTI ID: 183456
• Report Number(s): CONF-950676--
• Journal Information: Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 3-4 Vol. 101; ISSN JLTPAC; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
HELIUM 3
HELIUM 4
MAGNETIC DIPOLES
MAGNETIC FIELDS
MAGNETIZATION
MIXTURES
NUCLEAR MAGNETIC RESONANCE
SPIN ORIENTATION