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VOLUME 86 | ISSUE 1 | PAGE 26
Dipolar temperature and Multiple Quantum NMR Dynamics in Dipolar Ordered Spin Systems
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


PACS: 76.20.+q, 82.56.Jn
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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