SPIN-POLARIZING CONCENTRATED HE-3-HE-4 MIXTURES BY THE RAPID-MELTING METHOD

SPIN-POLARIZING CONCENTRATED HE-3-HE-4 MIXTURES BY THE RAPID-MELTING METHOD

We have achieved high-spin polarizations in concentrated mixtures of He-3 in He-4 using the rapid-melting method originally suggested by Castaing and Nozieres for pure He-3. Polarizations well above the equilibrium value (greater than 10%) were obtained at T almost-equal-to 350 mK. The observed rela...

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Veröffentlicht in:Europhysics letters 1992-01, Vol.17 (3), p.219-224
Hauptverfasser: ROOBOL, LP, STEEL, SC, JOCHEMSEN, R, FROSSATI, G, BEDELL, KS, MEYEROVICH, AE
Format: Artikel
Sprache:eng
Schlagworte:
Physical Sciences
Physics
Physics, Multidisciplinary
Science & Technology
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Zusammenfassung:We have achieved high-spin polarizations in concentrated mixtures of He-3 in He-4 using the rapid-melting method originally suggested by Castaing and Nozieres for pure He-3. Polarizations well above the equilibrium value (greater than 10%) were obtained at T almost-equal-to 350 mK. The observed relaxation time T1 = 4000 s was of the same order as the theoretical predictions of the bulk relaxation time, and was long enough to suggest that it should be possible to study the properties of these strongly polarized mixtures.
ISSN:0295-5075
DOI:10.1209/0295-5075/17/3/006