Structural properties and superconductivity in the Y1−xPrxBaSrCu3O7−δ system
作者： Guanghan Cao , Yitai Qian , Zuyao Chen , Xiaojun Li , Hongkai Wu
DOI: 10.1016/0375-9601(94)91237-8
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摘要: Abstract The single phase of Y 1− x Pr BaSrCu 3 O 7− δ has been investigated by powder X-ray diffraction and temperature dependence the resistivity. It is found that system undergoes an orthorhombic-to-tetragonal transition at =0.5. Superconductivity still survives until =0.7. These results have compared with those Ba 2 Cu system, which was discussed in terms Pr-O covalent bonding effect.
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