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Fergusonite–Scheelite Phase Transition of Praseodymium Orthoniobate

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Inorganic Materials Aims and scope

Abstract—

Polycrystalline praseodymium orthoniobate, PrNbO4, has been studied by high-temperature X‑ray diffraction and differential scanning calorimetry. We have determined the temperature of the fergusonite–scheelite structural phase transition and shown it to be a second-order transition.

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ACKNOWLEDGMENTS

In this study, we used equipment at the Shared Physical Characterization Facilities Center, Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences.

Funding

This work was supported by the Russian Federation Ministry of Science and Higher Education (state research target for the Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, basic research) and the Russian Foundation for Basic Research (grant no. 18-03-00343).

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 119991, Moscow, Russia

    G. E. Nikiforova, A. V. Khoroshilov & K. S. Gavrichev

  2. Lobachevsky State University, pr. Gagarina 23/2, 603950, Nizhny Novgorod, Russia

    A. V. Knyazev & S. S. Knyazeva

Authors
  1. G. E. Nikiforova
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  2. A. V. Khoroshilov
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  3. K. S. Gavrichev
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  4. A. V. Knyazev
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  5. S. S. Knyazeva
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Corresponding author

Correspondence to G. E. Nikiforova.

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Translated by O. Tsarev

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Nikiforova, G.E., Khoroshilov, A.V., Gavrichev, K.S. et al. Fergusonite–Scheelite Phase Transition of Praseodymium Orthoniobate. Inorg Mater 55, 964–967 (2019). https://doi.org/10.1134/S0020168519090085

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  • DOI: https://doi.org/10.1134/S0020168519090085

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