Optical conductivity in superconducting layered cuprate oxides

S. Takahashi, M. Tachiki

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Various properties of the cuprate oxides are explained by a layer model in which normal and superconducting layers are alternately stacked and the bulk superconductivity is maintained by the proximity effect. By using this model, the optical conductivity of the cuprate oxides is calculated. The result for YBa2Cu3O7 is that the optical conductivity for the light polarized parallel to the CuO chain has finite values even for frequencies below the gap, although the conductivity for the light perpendicular to the chain vanishes below the gap, as in the conventional superconductors. The character of the optical conductivities is seen in the results of the optical conductivities measured by Schlesinger et al. using untwinned YBa2Cu3O7 single crystals.

Original languageEnglish
Pages (from-to)505-512
Number of pages8
JournalPhysica C: Superconductivity and its applications
Volume170
Issue number5-6
DOIs
Publication statusPublished - 1990 Oct 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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