Abstract
The electrophysical properties of Li2B4O7 single crystals and glasses are studied in the temperature range 290–1100 K and the frequency range 1–1000 kHz. The strong frequency dispersion of ionic conductivity at temperatures close to room temperature is explained by the low-frequency hoppings of lithium ions from the basic to the interstitial positions. The dielectric relaxation accompanying the transport of lithium ions is analyzed within the framework of the Debye-Skanavi model. The minimum hopping length of Li+ ions and the height of the potential barrier between their closest positions are determined. The parameters obtained are compared with the known structural data.
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Translated from Kristallografiya, Vol. 48, No. 4, 2003, pp. 727–733.
Original Russian Text Copyright © 2003 by I. Rizak, V. Rizak, Baisa, Bilanich, Boguslavski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \), Stefanovich, Golove\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \).
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Rizak, I.M., Rizak, V.M., Baisa, N.D. et al. Charge transport in Li2B4O7 in single crystal and glassy states. Crystallogr. Rep. 48, 676–681 (2003). https://doi.org/10.1134/1.1595195
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DOI: https://doi.org/10.1134/1.1595195