Advertisement

The Madelung Energy of Cu-O Based Compounds

  • J. Kondo
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 89)

Abstract

Based on the ionic crystal model, we approximate the energy of Cu-O based layered compounds by the sum of the Madelung energy and the energies of the isolated ions. Carrier distribution is determined so as to make this energy a minimum. We have considered compounds like Bi2Sr2(Ca,Y)n−1 CunO2n+4 and found several different types of carrier distribution:
  1. A:

    holes in the oxygens in the Cu-O planes with Cu surrounded by six or five oxygens

     
  2. B:

    holes in the apical oxygens

     
  3. C:

    electrons in the Cu-O planes with Cu in square-planar coordination

     
  4. D:

    electrons in the Cu-O planes as well as in the Bi-O or Tl-O planes

     
  5. E:

    holes in the Cu-O planes and electrons in the Bi-O or Tl-O planes

     
  6. F:

    electrons in the Bi-O or T1-O planes.

     

Keywords

Apical Oxygen Carrier Distribution Dope Electron Excess Positive Charge Hole Level 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    J. Kondo: Submitted to J. Phys. Soc. Jpn.Google Scholar

Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • J. Kondo
    • 1
  1. 1.Electrotechnical LaboratoryTsukuba, IbarakiJapan

Personalised recommendations