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Effect of Barium Concentration on the Structural Properties and Electrical Conductivity of Pr1 – xBaxMnO3 (x = 0, 0.15, 0.25) Solid Solutions

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Abstract—

The effect of partial barium substitution for praseodymium on temperature-induced structural transformations of Pr1 – xBaxMnO3 (x = 0, 0.15, 0.25) solid solutions has been studied by high-temperature X-ray diffraction and differential thermal analysis. The results demonstrate that the addition of barium to a concentration x = 0.15 considerably reduces the temperature of the Jahn–Teller transition. Raising the barium dopant concentration to x = 0.25 leads to disappearance of the Jahn–Teller distortion. The electrical conductivity of all the materials has been shown to exhibit semiconducting behavior. With increasing dopant concentration, their electrical conductivity rises.

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ACKNOWLEDGMENTS

In this study, we used equipment at the Ural-M Shared Research Facilities Center.

Funding

This work was supported by the Russian Federation Ministry of Science and Higher Education (state research target for the Institute of Metallurgy, Ural Branch, Russian Academy of Sciences).

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Authors and Affiliations

  1. Institute of Metallurgy, Ural Branch, Russian Academy of Sciences, 620016, Yekaterinburg, Russia

    O. M. Fedorova, L. B. Vedmid’ & V. F. Balakirev

  2. Ural Federal University, 620002, Yekaterinburg, Russia

    L. B. Vedmid’ & V. A. Vorotnikov

  3. Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 620137, Yekaterinburg, Russia

    V. B. Balakireva & V. A. Vorotnikov

Authors
  1. O. M. Fedorova
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  2. L. B. Vedmid’
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  3. V. B. Balakireva
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  4. V. A. Vorotnikov
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  5. V. F. Balakirev
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Correspondence to L. B. Vedmid’.

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Translated by O. Tsarev

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Fedorova, O.M., Vedmid’, L.B., Balakireva, V.B. et al. Effect of Barium Concentration on the Structural Properties and Electrical Conductivity of Pr1 – xBaxMnO3 (x = 0, 0.15, 0.25) Solid Solutions. Inorg Mater 57, 392–398 (2021). https://doi.org/10.1134/S002016852104004X

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  • DOI: https://doi.org/10.1134/S002016852104004X

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