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 ω−1loc (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.
Citation:
S. I. Doronin, E. B. Fel'dman, E. I. Kuznetsova, G. B. Furman, S. D. Goren, “Dipolar temperature and Multiple Quantum NMR Dynamics in Dipolar Ordered Spin Systems”, Pis'ma v Zh. Èksper. Teoret. Fiz., 86:1 (2007), 26–29; JETP Letters, 86:1 (2007), 24–27