Synthesis and rietveld refinement of (Y1-xPrx)Ba2Cu3O7 compound

Flores S. Jesus, Bustamante D. Angel, Feijoo L. Juan, J. C. Gonzalez, Sanchez C. Dalbert, Geraldo R.C. Cernicchiario

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

A structural study of the incorporation of Pr-ion into the Y-site was realized in polycrystalline samples of (Y1-xPrx)Ba2Cu3O7 through of Rietveld analysis of X-ray diffraction patterns, bond valence method and electronic density diagrams. The crystalline structure stabilized into orthorhombic phase (Pmmm) for x=0, but the unit cell increases its symmetry by doping the Y-site and stabilizing into a tetragonal phase (P4/mmm) for x=0.5. Moreover, the structural results obtained were correlated with the magnetization measurements, where the Tc decreased from 90K (x=0.0) to 49K (x=0.3). The oxygen content in the compounds was checked by means of μ-Raman spectroscopy, observing the frequency position of O(4)-Ag phonon mode.

Original languageEnglish
Pages (from-to)576-581
Number of pages6
JournalPhysics Procedia
Volume36
DOIs
StatePublished - 2012
Externally publishedYes
EventSuperconductivity Centennial Conference, SCC 2011 - The Hague, Netherlands
Duration: 18 Sep 201123 Sep 2011

Bibliographical note

Funding Information:
This work was supported by the Universidad Nacional Mayor de San Marcos and its Superior Council of Research under contract Nº. 021301101. J.C. Gonzalez thanks to CSIC for his JAE-Doc contract (2009-2012) at the ICMSE-CSIC-US (Spain), and to the Consejería de Economía, Innovación y Ciencia of the Junta de Andalucía (Project FQM-6900) by the financial support.

Keywords

  • Praseodymium doping
  • Rietveld refinement
  • Superconductivity suppression

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