Authors: Böhmer, Roland
Qi, F.
Diezemann, G.
Böhm, H.
Lambert, J.
Title: Simple modeling of dipolar coupled 7^Li spins and stimulated-echo spectroscopy of single-crystalline ß-eucryptite
Language (ISO): en
Abstract: Stimulated-echo spectroscopy has recently been applied to study the ultra-slow dynamics of nuclear spin-3/2 probes such as 7^Li and 9^Be 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 quadrupolar 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.
Subject Headings: Nuclear magnetic resonance
Quadrupolar nuclei
Dipolar interactions;
Stimulated spin echoes
Ion transport
URI: http://hdl.handle.net/2003/25489
http://dx.doi.org/10.17877/DE290R-2357
Issue Date: 2004-05-05
Rights: Copyright © 2004 Elsevier Inc. All rights reserved.
Publisher: Elsevier
URL: http://dx.doi.org/10.1016/j.jmr.2004.04.018
Citation: Qi, F.; Diezemann, G.; Böhm, H.; Lambert, J.; Böhmer, R.: Simple modeling of dipolar coupled 7^Li spins and stimulated-echo spectroscopy of single-crystalline ß-eucryptite. In: Journal of Magnetic Resonance Nr. 2, Jg. 169(2004), S. 225-239, doi: 10.1016/j.jmr.2004.04.018.
Appears in Collections:Böhmer, Roland Prof. Dr.

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