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Obtaining YBa2Cu3O y crystals via YO1.5-BaO-CuO x melt electrolysis

  • Proceedings of the International Symposium “Ordering in Minerals and Alloys” OMA-16 and Proceedings of the International Symposium “Order, Disorder, and Properties of Oxides” ODPO-16
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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

Mass transfer during the melt electrolysis of Y0.02Ba0.30Cu0.70O y and Y0.02Ba0.25Cu0.75O y samples is investigated at a temperature of 950°C (0.5 h) and a current of 5–1050 A in a cell. Crystal deposits of YBa2CVu3O6 + δ tetragonal oxide (123) are grown, and their cation composition and structure are investigated by means of X-ray phase analysis, electron diffraction, elemental analysis, and high resolution on a transmission electron microscope. Deviation of the cation composition of oxide (123) from the stoichiometric ratio and its nanostructured state at nanocrystallite sizes of 2–5 nm are observed. The temperature dependence of magnetic susceptibility after oxygen annealing (450°C, 1 h) has four curve bends, indicating there are four superconducting phases with T s = 45, 52, 75, and 86 K.

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References

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  2. Klinkova, L.A., Nikolaichik, V.I., Barkovskii, N.V., et al., Russ. J. Inorg. Chem., 2001, vol. 46, p. 628.

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Authors and Affiliations

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

    L. A. Klinkova, N. V. Barkovskii, A. F. Shevchun & V. K. Fedotov

  2. Institute of Microelectronics Technology and High Purity Materials, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia

    V. I. Nikolaichik

Authors
  1. L. A. Klinkova
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  2. V. I. Nikolaichik
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  3. N. V. Barkovskii
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  4. A. F. Shevchun
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  5. V. K. Fedotov
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Corresponding author

Correspondence to L. A. Klinkova.

Additional information

Original Russian Text © L.A. Klinkova, V.I. Nikolaichik, N.V. Barkovskii, A.F. Shevchun, V.K. Fedotov, 2014, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2014, Vol. 78, No. 4, pp. 392–394.

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Klinkova, L.A., Nikolaichik, V.I., Barkovskii, N.V. et al. Obtaining YBa2Cu3O y crystals via YO1.5-BaO-CuO x melt electrolysis. Bull. Russ. Acad. Sci. Phys. 78, 261–263 (2014). https://doi.org/10.3103/S1062873814040169

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  • DOI: https://doi.org/10.3103/S1062873814040169

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