Preparation and characterization of the superconductor CaLaBaCu 2.8(PO4)0.2O6.2 compound

Valladares Luis De Los Santos, D. Angel Bustamante, S. Jesus Flores, G. Juan C. Gonzalez

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4 Scopus citations

Abstract

We report the study of the CaLaBaCu2.80(PO4) 0.20O6.20 compound which is a superconductor with critical temperature of 90 K. This compound was prepared by the solid state reaction method under normal conditions of pressure and temperature, replacing 0.2 of the oxianion phosphate (PO4)-3 in the Copper site of CaLaBaCu3O7-δ (La-1113). Tc was determined by measurement of magnetic susceptibility by using a SQUID detection system. The X-ray difractogram revealed the BaCuO2 as extra phase, the Rietveld analysis sugested an orthorhombic crystalline structure belonging to the Pmmm spatial group with a = 3.849 Å, b = 3.880 Å and c = 11.630 Å.

Original languageEnglish
Pages (from-to)44-45
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Volume408-410
Issue number1-4
DOIs
StatePublished - Aug 2004
Externally publishedYes
EventProceedings of the International Conference on Materials - Rio de Janeiro, Brazil
Duration: 25 May 200330 May 2003

Keywords

  • Phosphate
  • Rietveld analysis
  • XRD

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