Effect of Hydrogen Intercalation on the Structure of YBa2Cu3Oy with a Low Oxygen Content


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We used Raman spectroscopy to study the interaction of YBa2Cu3Oy (123) (y ≤ 6.5) with hydrogen at temperatures of 150–200°С. In contrast to the YBa2Cu3O6.96 compound, compositions with low oxygen contents show a lower tendency to form stacking faults. We found that the hydrogenation of these compositions does not lead to the transformation of the 123 phase to the pseudo-124 phase. Absorbed hydrogen does not react with oxygen in 123 and does not form hydroxyl groups. The HxYBa2Cu3Oy oxyhydride is the hydration-reaction product.

Sobre autores

I. Bobylev

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

Autor responsável pela correspondência
Email: bobylev@imp.uran.ru
Rússia, Ekaterinburg, 620108

Yu. Ponosov

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University

Email: bobylev@imp.uran.ru
Rússia, Ekaterinburg, 620108; Ekaterinburg, 620002

N. Zyuzeva

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences

Email: bobylev@imp.uran.ru
Rússia, Ekaterinburg, 620108

P. Terent’ev

Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences; Ural Federal University

Email: bobylev@imp.uran.ru
Rússia, Ekaterinburg, 620108; Ekaterinburg, 620002

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