Abstract
The disorder in ion motion in a LaF3 superionic conductor with tysonite structure is determined from NMR spectra. The method is sensitive to dynamic effects with correlation times of 5×10−3<τ<10−6 s. Within the 260–400-K interval, ion movement is observed only on one of the sublattices (F1), and it exhibits a correlation time distribution. The shape of the distribution is well fitted by a log-Gaussian. The distribution in correlation times reflects noticeable spatial fluctuations of local potentials in the LaF3 superionic conductor.
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Fiz. Tverd. Tela (St. Petersburg) 41, 1616–1620 (September 1999)
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Privalov, A.F., Murin, I.V. Ion-motion disorder in a tysonite superionic conductor from 19F NMR data. Phys. Solid State 41, 1482–1485 (1999). https://doi.org/10.1134/1.1131036
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DOI: https://doi.org/10.1134/1.1131036