Hydrothermal synthesis and ionic conductivity of CdF2 and low-temperature modifications of PbF2 and PbSnF4 |
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| Authors: | O K Nikol’skaya L N Demianets N I Sorokin |
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| Institution: | (1) Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 117333, Russia |
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| Abstract: | Single crystals of CdF2 and low-temperature modifications of PbF2 and PbSbF4 are synthesized from high-temperature hydrothermal solutions in the MF2-M′F2-HF (KF, NH4F)-(Pb)-H2O systems, where M = Cd and Pb and M′ = Sn. Ionic conductivity of the synthesized phases showed pronounced anisotropy of fluoride-ion transport. Conductivity of α-PbF2 measured along two directions equals σ∥a = 1.4 × 10?3 Sm/cm and σ∥c = 2.3 × 10?4 Sm/cm. |
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