Hydrogen in a Nonstoichiometric YBa2Cu3O6.96 Compound: Study by Raman Spectroscopy
- Authors: Bobylev I.B.1, Ponosov Y.S.1,2, Zyuzeva N.A.1, Terent’ev P.B.1,2
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Affiliations:
- Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
- Ural Federal University Named after the First President of Russia B.N. Yeltsin
- Issue: Vol 119, No 7 (2018)
- Pages: 643-649
- Section: Structure, Phase Transformations, and Diffusion
- URL: https://journals.rcsi.science/0031-918X/article/view/167671
- DOI: https://doi.org/10.1134/S0031918X18070025
- ID: 167671
Cite item
Abstract
Raman spectroscopy has been used to study the interactions between the YBa2Cu3O6.96 compound (123) and hydrogen at 150–200°C and their effects on the structure. It has been found that, when the YBa2Cu3O6.96 compound is subjected to hydrogen intercalation and hydration, the transformation of 123 into tetragonal phase (pseudo-124) takes place. In this case, Raman spectra of the YBa2Cu3O6.96 compound, similarly to those of a compound with absorbed water, exhibit antiferromagnetic fluctuations that are not typical of the compound. After hydrogenation, the 123 compound absorbs water under normal conditions and oxygen at temperatures below 300°C.
Keywords
About the authors
I. B. Bobylev
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Author for correspondence.
Email: bobylev@imp.uran.ru
Russian Federation, Ekaterinburg, 620108
Yu. S. Ponosov
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin
Email: bobylev@imp.uran.ru
Russian Federation, Ekaterinburg, 620108; Ekaterinburg, 620002
N. A. Zyuzeva
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: bobylev@imp.uran.ru
Russian Federation, Ekaterinburg, 620108
P. B. Terent’ev
Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University Named after the First President of Russia B.N. Yeltsin
Email: bobylev@imp.uran.ru
Russian Federation, Ekaterinburg, 620108; Ekaterinburg, 620002