We 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).
|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
Bibliographical noteFunding Information:
This work was realized at the Universidad Nacional Mayor de San Marcos and was supported by its Consejo Superior de Investigaciones (CSI) under contract N°031301021. We thank to Dr. Xavier Obradors from ICMAB-CSIC, for the SQUID measurements and J.C. González thanks to AECI for his Doctoral fellowship.
- Rietveld refinement