Preparation and characterization of the superconductor CaLaBaCu2.8(BO3)0.2O6.4 compound
2004; Elsevier BV; Volume: 408-410; Linguagem: Inglês
10.1016/j.physc.2004.03.231
ISSN1873-2143
AutoresÁngel Bustamante, Q. Richard Bellido, L. De Los Santos Valladares, J. C. González,
Tópico(s)Magnetic and transport properties of perovskites and related materials
ResumoWe report the study of the CaLaBaCu2.80(BO3)0.2O6.4-compound which is superconductor at the critical temperature of 68 K. This compound was prepared by the solid state reaction method under normal conditions of pressure and temperature, replacing a percentage of copper (x=6.7%) from CaLaBaCu3O7−δ (La1113) by the oxianion borate (BO3)3−. Tc onset was determined by measurements of magnetic susceptibility by using a SQUID detection system. The X-ray Rietveld analysis of this compound can be characterized by orthorhombic symmetry (Pmmm).
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