✦ LIBER ✦

Spin diffusion in3He-4He solutions under pressure

✍ Scribed by E. S. Murdock; K. R. Mountfield; L. R. Corruccini

Publisher: Springer US
Year: 1978
Tongue: English
Weight: 427 KB
Volume: 31
Category: Article
ISSN: 0022-2291
DOI: 10.1007/bf00115104

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✦ Synopsis

We have measured the spin diffusion coefficient D for 3He-nile solutions of nominal 3He concentration x = 1.3% and 5.0% at pressures of ~0, 10 and 20atm, and an x=8.5% solution at 4, 10 and 20atm. The results are interpreted in terms of the Bardeen-Baym-Pines theory for 3He-aHe solutions, and curves for the effective 3He-3He interaction V(k) are presented. We find no evidence for a minimum in V(k) at nonzero k. Weak coupling BCS pairing transition temperatures calculated from the V(k) lie in the range 10-6-10 -7 K.

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