Measurement of longitudinal spin diffusion in dilute 3He4He solutions
✍ Scribed by G. Nunes Jr.; C. Jin; A.M. Putnam; D.M. Lee
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 226 KB
- Volume
- 165-166
- Category
- Article
- ISSN
- 0921-4526
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✦ Synopsis
We have used pulsed NMR to investigate longitudinal spin diffusion in a dilute (350 ppm) solution of 3He in 4He at temperatures between 100 and 4 mI<. The design of our experiment allows us to measure Dll independently of DI. Our preliminary results are in good agreement with theoretical calculations, both in the classical (2' >> 2'~) and intermediate (T N TF) regimes.
📜 SIMILAR VOLUMES
Transverse spin transport is measured in a 0.1% 'He-'He mixture polarized by an 8T magnetic field Spin diffusion as well as spin rotation effects are observed by exciting spin-wave modes in a small spherical cavity. A preliminary analysis of the data shows that the spin-rotation parameter Q,,,r\* in
Spin dynamics of 3He-4He dilute solution have been studied in the collisionless regime by using pulsed NMR methods. We observed non-linear effect on the large amplitude spin waves, the frequency of each spin wave mode shifted with changing a tipping angle. These behaviour are compared with the numer