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Puzzling Behavior of Hydrated YBCO

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Abstract

We study the influence of a close-lying non-magnetic and non-charged metal disk on the hydration reaction of YBa2Cu3O6+δ (YBCO). It has been established that at a distance in the range of 6–7 mm from the disk surface, the rate of the hydration is significantly reduced relative to distances out of this interval. The effect obtained is very puzzling. It allows assuming an interaction of unknown nature to exist between YBCO and the disk. Further direct measurements of the force acting between these bodies have been performed. A recorded repulsive interaction with a magnitude of 6.5·10−6 N, which is 0.04% of the sample weight, has confirmed our assumption.

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Notes

  1. Their models of the crystal structure are presented in [11, 12].

  2. Similar conclusions were made for all other samples of our study.

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Acknowledgments

The author thanks E.A. Vyaznikova for providing X-ray diffraction data. The study was performed with the use of equipment of the Ural-M Collective Use Center at the Institute of Metallurgy of the Russian Academy of Sciences.

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  1. Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia

    A. V. Fetisov

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Fetisov, A.V. Puzzling Behavior of Hydrated YBCO. J Supercond Nov Magn 33, 3341–3348 (2020). https://doi.org/10.1007/s10948-020-05620-0

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