Copper Oxidation States, Vacancy Ordering and Their Effect on High Temperature Superconductivity

  • Ivan K. Schuller
  • D. G. Hinks
  • J. D. Jorgensen
  • L. Soderholm
  • M. Beno
  • K. Zhang
  • C. U. Segre
  • Y. Bruynseraede
  • J.-P. Locquet

Abstract

We briefly review our comprehensive work on high temperature oxides which are isostructural with YBa2Cu307−δ. X-ray and neutron diffraction, together with superconductive and normal state measurements show that the Cu-0 chains present in the structure play an important role in the superconductivity. Whether the oxygen ordering or the presence of copper in a 3+ oxidation state is responsible for the high temperature superconductivity cannot be ascertained at the present time.

Keywords

Perovskite Parkin 

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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • Ivan K. Schuller
    • 1
  • D. G. Hinks
    • 1
  • J. D. Jorgensen
    • 1
  • L. Soderholm
    • 1
  • M. Beno
  • K. Zhang
    • 1
    • 2
  • C. U. Segre
    • 1
    • 2
  • Y. Bruynseraede
    • 1
    • 3
  • J.-P. Locquet
    • 1
    • 3
  1. 1.Materials Science and Chemistry DivisionsArgonne National LaboratoryArgonneUSA
  2. 2.Physics DepartmentIllinois Institute of TechnologyChicagoUSA
  3. 3.Instituut voor NatuurkundeKatholieke UnivesiteitLeuvenBelgium

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