Anisotropy of Ionic Conductivity of TbF3 Crystals
- Авторы: Sorokin N.1, Karimov D.1, Sobolev B.1
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Учреждения:
- Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,” Russian Academy of Sciences
- Выпуск: Том 64, № 4 (2019)
- Страницы: 621-625
- Раздел: Physical Properties of Crystals
- URL: https://journals.rcsi.science/1063-7745/article/view/194115
- DOI: https://doi.org/10.1134/S1063774519040217
- ID: 194115
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Аннотация
Temperature measurements (in the range of 375–830 K) of the ionic conductivity of terbium trifluoride single crystals (structure type β-YF3) along three unit-cell crystallographic axes (a, b, and c) have been performed. It is found that TbF3 crystals (orthorhombic system, sp. gr. Pnma) have a weak anisotropy of electrical conductivity: σ||b/σ||a = σ||b/σ||c ≈ 2. The conductivity along the b axis is σ||b = 8 × 10–6 S/cm at 500 K. The anisotropy of fluorine-ion conductivity in rare-earth fluorides with β-YF3, LaF3 (tysonite), and β-BaTm2F8 structures is discussed in the contest of the specific features of their atomic structure.
Об авторах
N. Sorokin
Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”Russian Academy of Sciences
Автор, ответственный за переписку.
Email: nsorokin1@yandex.ru
Россия, Moscow, 119333
D. Karimov
Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”Russian Academy of Sciences
Email: nsorokin1@yandex.ru
Россия, Moscow, 119333
B. Sobolev
Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”Russian Academy of Sciences
Email: nsorokin1@yandex.ru
Россия, Moscow, 119333