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Calculation of the Distribution Coefficient for Sr2+ in LaF3 Crystal at Infinite Dilution, Based on the Data on Directional Solidification of La1 − ySryF3 − y Solid Solutions

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Abstract

The thermodynamic distribution coefficient for Sr2+ impurity in LaF3 crystal at infinite dilution (c → 0) k0 = 1.60 ± 0.02 is determined based on the data on directional solidification of La1 − ySryF3 − y solid solutions (0.01 ≤ y ≤ 0.15, LaF3 tysonite structure type). The obtained k0 value is in good agreement with the estimated distribution coefficient k0 = 1.7, which was found previously by modified cryoscopy from the liquid–solid phase diagram of the SrF2–LaF3 system.

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Funding

This study was supported by the Ministry of Science and Higher Education of the Russian Federation within the State assignment for the Federal Scientific Research Centre “Crystallography and Photonics” of the Russian Academy of Sciences.

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Authors and Affiliations

  1. Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,” Russian Academy of Sciences, 119333, Moscow, Russia

    N. I. Sorokin & E. A. Krivandina

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  1. N. I. Sorokin
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  2. E. A. Krivandina
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Correspondence to N. I. Sorokin.

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Translated by Yu. Sin’kov

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Sorokin, N.I., Krivandina, E.A. Calculation of the Distribution Coefficient for Sr2+ in LaF3 Crystal at Infinite Dilution, Based on the Data on Directional Solidification of La1 − ySryF3 − y Solid Solutions. Crystallogr. Rep. 65, 297–299 (2020). https://doi.org/10.1134/S1063774520020236

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  • DOI: https://doi.org/10.1134/S1063774520020236

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