Abstract

The ion mobility and conductivity of solid solutions with tysonite-type structure obtained by doping bismuth trifluoride with lead (II) fluoride, and zirconium and bismuth oxides have been studied using 19F NMR, X-ray diffraction analysis, and impedance spectroscopy. The types of ionic motions in the fluoride sublattice of the synthesized solid solutions in the temperature range 150–450 K have been determined and the energy of their activation has been estimated. Due to high ionic conductivity, above 10–2 S/cm at 570 K, these solid solutions can be considered as superionic conductors.

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