Nanoscale Effects in PbF2–CdF2 Solid Solutions
- Authors: Petrov A.V.1, Salamatov M.S.1, Ivanov-Schitz A.K.2,3, Murin I.V.1
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Affiliations:
- Institute of Chemistry, St. Petersburg State University
- MGIMO University
- Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,” Russian Academy of Sciences
- Issue: Vol 64, No 6 (2019)
- Pages: 932-936
- Section: Physical Properties of Crystals
- URL: https://journals.rcsi.science/1063-7745/article/view/194321
- DOI: https://doi.org/10.1134/S106377451905016X
- ID: 194321
Cite item
Abstract
The specific features of the fluorine-ion transport in nanostructured samples of Рb1 – xCdxF2 solid solutions are studied by the molecular dynamics method. The diffusion coefficients DF of fluorine ions in these samples increase by several orders of magnitude (at room temperature) as compared to bulk crystals. The experimentally observed maximum of fluorine diffusion at 30 mol % CdF2 could be reproduced for spherical nanoparticles more than 15 nm in size. It is shown that the mobility of the F– ions located on the surface of nanospherical particles exceeds several times the mobility of fluorine anions in the particle bulk.
About the authors
A. V. Petrov
Institute of Chemistry, St. Petersburg State University
Email: alexey.k.ivanov@gmail.com
Russian Federation, St. Petersburg, 198504
M. S. Salamatov
Institute of Chemistry, St. Petersburg State University
Email: alexey.k.ivanov@gmail.com
Russian Federation, St. Petersburg, 198504
A. K. Ivanov-Schitz
MGIMO University; Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”Russian Academy of Sciences
Author for correspondence.
Email: alexey.k.ivanov@gmail.com
Russian Federation, Moscow, 119454; Moscow, 119333
I. V. Murin
Institute of Chemistry, St. Petersburg State University
Email: alexey.k.ivanov@gmail.com
Russian Federation, St. Petersburg, 198504