Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5420657 | Solid State Nuclear Magnetic Resonance | 2010 | 6 Pages |
Abstract
Spin diffusion and spin-lattice relaxation in solids containing paramagnetic impurities under influence of a multiple-pulse spin-locking radio-frequency sequence are studied theoretically and experimentally. The diffusion equation obtained provides a clue for determination of the time dependent magnetization. The spin-lattice relaxation time is calculated as a function of the correlation time and multiple-pulse field parameters. From the experimental data the spin diffusion coefficient, the radius of the spin diffusion barrier, and the correlation time for very slow molecular motion in polycrystalline (C2F)n system are estimated and found to be Dâ¼7.1Ã10â12cm2/s, rcâ¼4.8Ã10â10m, and Ïcâ¼10.2μs, respectively.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
G.B. Furman, S.D. Goren, A.M. Panich, A.I. Shames, T. Nakajima,