Abstract
The ion mobility in a crystal of partially deuterated potassium hydroselenate (KHSe) was studied using nuclear spin resonance (NSR) of 1H, 2H, 77Se, and 39K in a wide temperature range. The temperature dependences of the deuterium NSR spectra above 360 K exhibit changes in the line shape characteristic of chemical exchange processes. These exchange processes were studied in detail using two-dimensional 2H NSR spectroscopy. It was ascertained that the exchange between deuterons of hydrogen bonds take place in the entire temperature range under study. However, the measured conductivity was approximately one-hundredfold lower than that estimated from the exchange frequencies. It was assumed that the low conductivity in the temperature range under study is caused by closed dimers of SeO4 groups in the KHSe structure.
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Translated from Fizika Tverdogo Tela, Vol. 46, No. 10, 2004, pp. 1784–1789.
Original Russian Text Copyright © 2004 by Ivanov, Sukhovski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \), Aleksandrova, Totz, Michel.
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Ivanov, Y.N., Sukhovskii, A.A., Aleksandrova, I.P. et al. Nuclear spin resonance study of the ion mobility in a KHSeO4 crystal. Phys. Solid State 46, 1845–1850 (2004). https://doi.org/10.1134/1.1809417
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DOI: https://doi.org/10.1134/1.1809417