NMR Characterization of Phase Separation in Highly Polarized He-3 - He-4 Solutions above 450 mK

Abstract : Laser optical pumping techniques have been successfully applied to concentrated He-3-He-4 gaseous mixtures. Using a He-3 cryostat, these mixtures were subsequently liquefied and studied down to 450 mK, using pulsed NMR techniques. Observation of highly nuclear polarized solutions and of phase separation (demixion) in the mixtures is reported. Measurements of magnetic relaxation times and the dynamics of coexisting phases in this system are discussed.
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https://hal.archives-ouvertes.fr/hal-02016725
Contributor : Geneviève Tastevin <>
Submitted on : Tuesday, February 12, 2019 - 8:01:41 PM
Last modification on : Saturday, March 23, 2019 - 1:40:40 AM

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  • HAL Id : hal-02016725, version 1

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G. Tastevin. NMR Characterization of Phase Separation in Highly Polarized He-3 - He-4 Solutions above 450 mK. Journal of Low Temperature Physics, 1992, 89 (1-2), pp.317--324. ⟨hal-02016725⟩

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