Pb3Sr3Cu3O8+δCl: A new layered copper oxychloride

Robert J. Cava,Pierre Bordet,J.J. Capponi, Catherine Chaillout, J. Chenavas, T. Fournier, Elizabeth A. Hewat,Jean-Louis Hodeau, J. P. Levy,M. Marezio,Bertram Batlogg,L. W. Rupp

Physica C-superconductivity and Its Applications（1990）

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摘要

Abstract The crystal structure and basic properties of a new layered copper oxychloride, Pb 3 Sr 3 Cu 3 O 8+δ Cl, are described. The new structure type is related to that of Pb 2 Sr 2 RECu 3 O 8+δ , with the RE (rare-earth) layer replaced by an (Sr, Pb)-Cl-(Sr, Pb) layer. A wide range of oxygen stoichiometry is observed. The new compound has the planes of CuO 5 pyramids required for high- T c superconductivity, but we have been unable to introduce enough (positive or negative) charge to drive it superconducting.

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