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Origin of the Superconductivity in the Y-Sr-Ru-O and Y-Sr-Cu-O Systems

E. Galstyan·Y. Y. Xue·M. N. Iliev·Y. Sun·C. W. Chu
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Abstract

We report on the structural, magnetic, and Raman-scattering studies of double perovskite structure Sr2Y(Ru1-xCux)O6-d systems made by systematic synthesis processes with various numbers of doping concentrations and sintering temperatures. We observed different behaviors resulting from the different thermal treatments. In particular, superconductivity in Cu-doped Sr2YRuO6 has been observed only for partially melted ceramic materials. We show that superconductivity is associated with the 1:2:3 phase (YSr2Cu3Ot), similar to that of Y-Sr-Cu-O samples sintered at high temperature.

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E. Galstyan, Y. Y. Xue, M. N. Iliev, Y. Sun, C. W. Chu. 2007-03-27. Origin of the Superconductivity in the Y-Sr-Ru-O and Y-Sr-Cu-O Systems. https://doi.org/10.1103/physrevb.76.014501

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