کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5420657 | 1395459 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spin diffusion in multiple pulse spin-locking in solids containing paramagnetic impurities
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Spin diffusion in multiple pulse spin-locking in solids containing paramagnetic impurities Spin diffusion in multiple pulse spin-locking in solids containing paramagnetic impurities](/preview/png/5420657.png)
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Nuclear Magnetic Resonance - Volume 38, Issue 4, November 2010, Pages 84-89
Journal: Solid State Nuclear Magnetic Resonance - Volume 38, Issue 4, November 2010, Pages 84-89
نویسندگان
G.B. Furman, S.D. Goren, A.M. Panich, A.I. Shames, T. Nakajima,