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States of Oxygen Ordering in YBa2Cu3Oz

  • D. de Fontaine

Abstract

The compound YBa2Cu3Oz (1-2-3) was the first one whose superconducting transition temperature exceeded the technologically important temperature of 77K1. Actually, the 1-2-3 compound at close to oxygen stoichiometry z=7 became superconducting at about Tc=90K, with Tc dropping by increments as z decreased from the value 7.

Keywords

Phase Diagram Mirror Plane Tricritical Point Cluster Variation Method Phase Diagram Calculation 
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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • D. de Fontaine
    • 1
  1. 1.Department of Materials Science and Mineral EngineeringUniversity of CaliforniaBerkeleyUSA

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