Correlation between superconductivity and structure in the [Y1−xPrx]Ba2Cu3O7 system

Authors

  • Jesús Flores Laboratorio de Cerámicos y Nanomateriales, Facultad de Ciencias Físicas, Universidad Nacional Mayor de San Marcos, A.P. 14-0149, Lima 14, Perú
  • Angel Bustamante Laboratorio de Cerámicos y Nanomateriales, Facultad de Ciencias Físicas, Universidad Nacional Mayor de San Marcos, A.P. 14-0149, Lima 14, Perú
  • Juan Feijoo Laboratorio de Cerámicos y Nanomateriales, Facultad de Ciencias Físicas, Universidad Nacional Mayor de San Marcos, A.P. 14-0149, Lima 14, Perú
  • J. C. González Grupo de Investigación de Superficies, Intercaras y Láminas Delgadas, Instituto de Ciencia de Materiales de Sevilla, CSIC, Universidad de Sevilla, Calle Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, España
  • Dalbert Sánchez Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Brasil
  • Geraldo R. C. Cernicchiaro Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, Brasil

DOI:

https://doi.org/10.15381/rif.v14i02.8698

Keywords:

Rietveld refinement, Praseodymium doping, superconductivity suppression.

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 correlating its doping effects on the superconducting properties. The oxygen content was checked by means of μ-Raman spectroscopy, observing the frequency position of OO4-Ag phonon mode, and establishing a relationship among the O4-Ag mode frequency and the two copper sites, Cu(1) and Cu(2). Two regions are observed with Pr-rich and Y-rich microstructures.
Revista de Investigación de Física

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Published

2011-12-30

Issue

Vol. 14 No. 02 (2011)

Section

Article

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Copyright (c) 2011 Jesús Flores, Angel Bustamante, Juan Feijoo, J. C. González, Dalbert Sánchez, Geraldo R. C. Cernicchiaro

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How to Cite

Correlation between superconductivity and structure in the [Y1−xPrx]Ba2Cu3O7 system. (2011). Revista De Investigación De Física, 14(02), 1-7. https://doi.org/10.15381/rif.v14i02.8698