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Study of the Radial Heterogeneity and Mosaic Microheterogeneity in KCNSH Mixed Crystals

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Abstract

Mixed crystals of potassium‒cobalt sulfate hexahydrate/potassium‒nickel sulfate hexahydrate (K2Co(SO4)2 · 6H2O/K2Ni(SO4)2 · 6H2O (KCNSH)) have been grown from a solution with an isomorphic-component ratio of KCSH : KNSH = 1 : 2. The presence of mosaic microheterogeneity in KCNSH crystals at a level of ∼2 at % is confirmed, and its dependence on supercooling is studied. The radial heterogeneity of KCNSH crystals is investigated as a function of the growth direction and rate. The heterogeneity of Co concentration in different samples is shown to vary from 0.2 to 0.8 wt %.

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Funding

This study was supported by the Russian Science Foundation (grant no. 15-12-00030).

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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. A. Vasilyeva, E. B. Rudneva, V. L. Manomenova, Yu. V. Grigoriev & A. E. Voloshin

  2. Institute of Solid State Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia

    V. M. Masalov, A. A. Zhokhov & G. A. Emelchenko

Authors
  1. N. A. Vasilyeva
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  2. E. B. Rudneva
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  3. V. L. Manomenova
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  4. Yu. V. Grigoriev
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  5. V. M. Masalov
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  6. A. A. Zhokhov
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  7. G. A. Emelchenko
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  8. A. E. Voloshin
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Corresponding author

Correspondence to E. B. Rudneva.

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Translated by Yu. Sin’kov

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Vasilyeva, N.A., Rudneva, E.B., Manomenova, V.L. et al. Study of the Radial Heterogeneity and Mosaic Microheterogeneity in KCNSH Mixed Crystals. Crystallogr. Rep. 64, 828–833 (2019). https://doi.org/10.1134/S1063774519050237

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  • DOI: https://doi.org/10.1134/S1063774519050237

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