Email this article Inverse correlation between the ionic and thermal conductivities of single crystals of M1–xRxF2 + x (M = Ca, Ba; R—rare-earth element) fluorite solid solutions
- Authors: Fedorov P.P.1, Sorokin N.I.2, Popov P.A.3
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Affiliations:
- Prokhorov General Physics Institute
- Shubnikov Institute of Crystallography, Crystallography and Photonics Federal Research Center
- Petrovskii State University
- Issue: Vol 53, No 6 (2017)
- Pages: 626-632
- Section: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/158239
- DOI: https://doi.org/10.1134/S0020168517060036
- ID: 158239
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Abstract
The logarithm of the 500-K fluoride ion conductivity of M1–xRxF2 + x (M = Ca, Ba; R = rare-earth element) crystals is shown to be inversely correlated with their 100-K thermal conductivity: materials with high ionic conductivity have low thermal conductivity and vice versa. For groups of solid solutions containing defect clusters similar in structure, the correlation coefficient is about 0.85.
About the authors
P. P. Fedorov
Prokhorov General Physics Institute
Author for correspondence.
Email: ppfedorov@yandex.ru
Russian Federation, ul. Vavilova 38, Moscow, 119991
N. I. Sorokin
Shubnikov Institute of Crystallography, Crystallography and Photonics Federal Research Center
Email: ppfedorov@yandex.ru
Russian Federation, Leninskii pr. 59, Moscow, 119333
P. A. Popov
Petrovskii State University
Email: ppfedorov@yandex.ru
Russian Federation, Bezhitskaya ul. 14, Bryansk, 241036
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