High-Tc superconductivity in regions of possible compound formation: Y2-xBaxCuO4-x/2+ and Y2-xBa1+xCu2O6-x/2+

Shiou Jyh Hwu, S. N. Song, J. Thiel, Kenneth R Poeppelmeier, J. B. Ketterson, Arthur J Freeman

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High-Tc superconductivity is investigated in the Y-Ba-Cu-O system. Regions of possible compound formation are Y2-xBaxCuO4-x/2 and Y2-xBa1+xCu2O6-x/2+. Tc values >90 K are found for the former with x=0.8 (the Chu material) and for the latter with x=0.2 and may imply a common superconductivity phase in both samples. Critical fields determined by resistance and low-field dc susceptibility measurements are reported.

Original languageEnglish
Pages (from-to)7119-7121
Number of pages3
JournalPhysical Review B
Issue number13
Publication statusPublished - 1987


ASJC Scopus subject areas

  • Condensed Matter Physics

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