Preparation and characterization of the superconductor [Y0.8Ca0.2]SrBaCu2.8(BO3)0.2O6.4 compound

We report the study of the [Y0.8Ca0.2]SrBaCu2.80(BO3)0.2O6.4 compound which is a superconductor with critical temperature of 45 K. This compound was prepared by the solid state reaction method under normal conditions of pressure and temperature, replacing 0.2 of oxianion borate (BO3)3- in the copper...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2004-08, Vol.408-410, p.58-59
Main Authors: Barinotto C, Victor H., Willems, Bram L., Bustamante D, Angel, Los Santos V, Luis De, Gonzalez G, Juan
Format: Article
Language:English
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Summary:We report the study of the [Y0.8Ca0.2]SrBaCu2.80(BO3)0.2O6.4 compound which is a superconductor with critical temperature of 45 K. This compound was prepared by the solid state reaction method under normal conditions of pressure and temperature, replacing 0.2 of oxianion borate (BO3)3- in the copper site of [Y0.8Ca0.2]SrBaCu3O7-delta. TC was determined by measuring the magnetic susceptibility using a SQUID detection system. The X-ray difractogram revealed a monophasic pattern, Rietveld analysis suggested an orthorhombic crystalline structure belonging to the Pmmm spatial group with a=3.826 A, b=3.861 A and c=11.561 A.
ISSN:0921-4534
DOI:10.1016/j.physc.2004.02.052