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Probable hole-doped superconductivity without apical oxygens in (calcium, sodium)2-copper-oxygen-chlorine.

Author(s) : HIROI Z., KOBAYASHI N., TAKANO M.

Type of article: Article

Summary

The apparent difference in mass and electronic character between chlorine and oxygen might strongly affect the electronic structure of the copper-oxide planes if the contributions of the apical atoms were significant. But the authors find hole-doped superconductivity at rather high-transition temperatures (26 K at maximum), which are only slightly less than those of doped lanthanum-copper-oxygen. This implies that the apical atoms do not play a significant role in the electron pairing mechanism leading to high-critical temperature superconductivity.

Details

  • Original title: Probable hole-doped superconductivity without apical oxygens in (calcium, sodium)2-copper-oxygen-chlorine.
  • Record ID : 1995-2740
  • Languages: English
  • Source: Nature - vol. 371 - n. 6493
  • Publication date: 1994/09/08
  • Document available for consultation in the library of the IIR headquarters only.

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