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.
|Number of pages||2|
|Journal||Physica C: Superconductivity and its Applications|
|State||Published - Aug 2004|
|Event||Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil|
Duration: 25 May 2003 → 30 May 2003
- Rietveld analysis