Preparation and characterization of the superconductor CaLaBaCu 2.8(BO3)0.2O6.4 compound

D. Angel Bustamante, Q. Richard Bellido, V. L. De Los Santos, J. C. González

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

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).

Original languageEnglish
Pages (from-to)884-885
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

Bibliographical note

Funding 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.

Keywords

  • Borate
  • Rietveld refinement

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