Journal
JOURNAL OF MAGNETIC RESONANCE
Volume 169, Issue 2, Pages 225-239Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jmr.2004.04.018
Keywords
nuclear magnetic resonance; quadrupolar nuclei; dipolar interactions; stimulated spin echoes; ion transport
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Stimulated-echo spectroscopy has recently been applied to study the ultra-slow dynamics of nuclear spin-3/2 probes such as Li-7 and Be-9 in solids. Apart from the dominant first-order quadrupolar interaction in the present article also the impact of the homonuclear dipolar interactions is considered in a simple way: the time evolution of a dipole coupled pair of spins with I = 3/2 is calculated in an approximation, which takes into account that the satellite transitions usually do not overlap. Explicit analytical expressions describing various aspects of a coupled quadupolar pair subjected to a Jeener-Broekaert pulse sequence are derived. Extensions to larger spin systems are also briefly discussed. These results are compared with experimental data on a single-crystalline Li ion conductor. (C) 2004 Elsevier Inc. All rights reserved.
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