S. Clough, A. Heidemann, A. J. Horsewill
Mar 1, 1984
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76
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Zeitschrift für Physik B Condensed Matter
Abstract
The tunnelling and torsional motions of methyl groups in lithium acetate dihydrate (CH3COOLi·2H2O) have been studied in detail by incoherent inelastic neutron scattering. The results are interpreted by a model of pairs of methyl groups performing a coupled tunnelling motion. The strength of the coupling term is estimated to be about twice as strong as the threefold hindering barrier for the single particle motion.