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Measurement of Spin-Diffusion Coefficient in Gaseous Helium between 2 K and 0.5 K

Spin-diffusion coefficient D in 3 He gas and in 3 He– 4 He mixtures has been measured by NMR techniques between 2 K and 0.5 K. The samples were polarized by optical pumping. The experimental values of D 33 (spin self-diffusion in 3 He) and D 34 (diffusion of 3 He in 4 He) seems to be twenty percent...

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Published in:Japanese Journal of Applied Physics 1987-01, Vol.26 (S3-1), p.211
Main Authors: Himbert, Marc, Dupont-Roc, Jacques, Leduc, Michèle, Nacher, Pierre-Jean
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Language:English
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container_issue S3-1
container_start_page 211
container_title Japanese Journal of Applied Physics
container_volume 26
creator Himbert, Marc
Dupont-Roc, Jacques
Leduc, Michèle
Nacher, Pierre-Jean
description Spin-diffusion coefficient D in 3 He gas and in 3 He– 4 He mixtures has been measured by NMR techniques between 2 K and 0.5 K. The samples were polarized by optical pumping. The experimental values of D 33 (spin self-diffusion in 3 He) and D 34 (diffusion of 3 He in 4 He) seems to be twenty percent higher than the theoretical predictions computed from currently used interatomic potentials.
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title Measurement of Spin-Diffusion Coefficient in Gaseous Helium between 2 K and 0.5 K
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