Email this article Instability of monovalent ions of transitional metals in alkaline earth fluorides: CaF2 and SrF2 activated by Co2+ or Ni2+
- Authors: Egranov A.V.1,2, Sizova T.Y.1, Kozlovskiy V.A.1
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Affiliations:
- Vinogradov Institute of Geochemistry, Siberian Branch
- Irkutsk State University
- Issue: Vol 81, No 9 (2017)
- Pages: 1069-1074
- Section: Article
- URL: https://journals.rcsi.science/1062-8738/article/view/185176
- DOI: https://doi.org/10.3103/S1062873817090088
- ID: 185176
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Abstract
The ground state of monovalent ions of transitional metals in alkaline-earth fluorides is localized in the conduction band. It is shown by the example of monovalent Co and Ni ions in CaF2 and SrF2 crystals that this is responsible for the unstable state of these ions in cubic environments. A stable state is achieved by the monovalent ions shifting to off-center positions.
About the authors
A. V. Egranov
Vinogradov Institute of Geochemistry, Siberian Branch; Irkutsk State University
Author for correspondence.
Email: alegra@igc.irk.ru
Russian Federation, Irkutsk, 664033; Irkutsk, 664003
T. Yu. Sizova
Vinogradov Institute of Geochemistry, Siberian Branch
Email: alegra@igc.irk.ru
Russian Federation, Irkutsk, 664033
V. A. Kozlovskiy
Vinogradov Institute of Geochemistry, Siberian Branch
Email: alegra@igc.irk.ru
Russian Federation, Irkutsk, 664033
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