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| VOLUME 86 | ISSUE 1 |
PAGE 26
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| Dipolar temperature and Multiple Quantum NMR Dynamics in Dipolar Ordered Spin Systems
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S. I. Doronin, E. B. Fel'dman, E. I. Kuznetsova, G. B. Furman+, S. D. Goren+
Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, Moscow Reg., Russia
+Department of Physics, Ben Gurion University, Beer Sheva 84105, Israel
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PACS: 76.20.+q, 82.56.Jn
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Abstract
We investigate analytically and numerically the Multiple
Quantum (MQ) NMR dynamics in systems of nuclear spins 1/2 coupled by the
dipole-dipole interactions in the case of the dipolar ordered initial state.
We suggest a new method of MQ NMR based on the measurement of the dipolar
temperature in the quasi-equilibrium state which
establishes after the time of order ωloc-1 (ωloc is
the dipolar local field) after the MQ NMR experiment. Many-spin clusters and
correlations are created faster in such experiment than in the usual MQ NMR
experiments and can be used for the investigation of many-spin dynamics of
nuclear spins in solids.
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