The Influence of Oxygen Stoichiometry on High-Tc YBa2Cu3Oy Superconductor Properties

  • P. Kostié
  • J.-H. Park

Abstract

The change of oxygen stoichiometry within YB2Cu3Oy ceramics exists a great influence on electrical properties. This material is p-type, but under some circumstances (in tetragonal phase, below y = 6.5) it can be n-type. In the orthorhombic superconducting phase (y between 6.5 and 6.7) the slope of conductivity versus change of stoichiometry is 1, and above y = 6.7, is 1/4. Frequency measurements of conductivity show grain boundary properties below y = 6.5, and above that value, some behaviour characteristic of superconducting material.

Keywords

Oxygen Partial Pressure Tetragonal Phase Orthorhombic Phase Superconducting Property Coulometric Titration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1989

Authors and Affiliations

  • P. Kostié
    • 1
  • J.-H. Park
    • 1
  1. 1.Center for Multidisciplinary StudyBelgrade University Yugoslavia, and Argonne National LaboratoryUSA

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