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Stabilization of the α-YF3 structure type by isomorphous substitutions

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Abstract

The incorporation of manganese difluoride as a heterovalent additive into an α-(Yb1–ySc y )F3 solid solution has made it possible to stabilize a solid solution with the α-YF3 (α-UO3) structure. The 573-K ionic conductivity of Yb0.49Sc0.26Mn0.25F2.75 is σ = 3 × 10–5 S/cm, with an activation enthalpy for ion transport ΔHσ = 0.6 eV (523–767 K).

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Authors and Affiliations

  1. Prokhorov General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991, Russia

    P. P. Fedorov

  2. Shubnikov Institute of Crystallography, Crystallography and Photonics Federal Research Center, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 119333, Russia

    N. I. Sorokin

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  1. P. P. Fedorov
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Correspondence to P. P. Fedorov.

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Original Russian Text © P.P. Fedorov, N.I. Sorokin, 2017, published in Neorganicheskie Materialy, 2017, Vol. 53, No. 12, pp. 1337–1341.

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Fedorov, P.P., Sorokin, N.I. Stabilization of the α-YF3 structure type by isomorphous substitutions. Inorg Mater 53, 1307–1311 (2017). https://doi.org/10.1134/S0020168517120044

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