Puzzling Behavior of Hydrated YBCO

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ORIGINAL PAPER

Puzzling Behavior of Hydrated YBCO A. V. Fetisov 1 Received: 3 May 2020 / Accepted: 20 July 2020 # Springer Science+Business Media, LLC, part of Springer Nature 2020

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. Keywords YBa2Cu3O6+δ . Hydration . Inhibitory effect . Force interaction

1 Introduction Recently, there were reports that the 8Be and 4He isotopes, serving as objects of studies at the subatomic level, exhibit unique anomalous properties concerning angular correlations of electron-positron pairs created inside them. In order to interpret their behavior, the authors were forced to assume that observed anomalies are associated with the birth of the hypothetical particle X17 [1, 2]. On the basis of that finding, the authors of [3, 4] supposed that along with the known four interactions existing in nature, there is at least one other, the carrier of which is the found hypothetical boson. Analyzing the results of our work, we believe that we are faced with an equally extraordinary phenomenon. The YBa2Cu3O6+δ (YBCO) superconductor hydrated in a special way at low pH2O and room temperature (RT) behaves very exotically, remotely interacting with surrounding bodies which exhibit neither magnetic nor electrical properties [5, 6]. This can be indirectly observed, for example, by changes in the rate of the hydration of YBCO near a massive metal disk [6]. It is surprising that interaction with the disk occurs in a narrow range of distances l from it with maximum intensity at l = 6–7 mm. It could be assumed that there is a certain field affecting the hydration reaction (in [6], it was assumed that this field is electromagnetic). At the same time, we

have so far failed to record anything emanating from YBCO under the conditions of our experiment, with the exception of a very weak field from electrostatic charge (which will be discussed in the framework of this paper). This charge quickly accumulates on the samples but, however, quickly disappears at the very beginning of the experiment. Our research echoes the works of E. Podkletnov et al. [7, 8], in which a partial weight loss of samples of different material and different chemical compositions suspended over a massive superconducting YBCO disk was recorded. Although the authors of [7, 8] explained their results from their special perspective, it is likely that we observed the same phenomenon. The main aim of the present study is to record