Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2007-08-30
Phys.Rev. B, 76, 144405 (2007)
Physics
Condensed Matter
Other Condensed Matter
11 pages, 3 figures. accepted for publication in Physical Review B
Scientific paper
10.1103/PhysRevB.76.144405
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 two different methods of MQ NMR. One of them is based on the measurement of the dipolar temperature in the quasi-equilibrium state which establishes after the time of order T2 after the MQ NMR experiment. The other method uses an additional resonance 45^0 -pulse after the preparation period of the standard MQ NMR experiment in solids. Many-spin clusters and correlations are created faster in such experiments than in the usual MQ NMR experiments and can be used for the investigation of many-spin dynamics of nuclear spins in solids.
Doronin Sergei I.
Fel'dman Edward B.
Furman Gregory B.
Goren Shaul D.
Kuznetsova E. I.
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