LaO/BaO/SrO oxygen(p)-metal(d) excitons as the mechanism of high-temperature superconductivity Academic Article uri icon


  • The discovery that cubic Ba0.6K0.4BiO3 is a high-temperature superconductor, with Tc ≈ 34 K, poses a challenge to theories based on CuO2 planes. On the other hand, this material, like all other currently-known high-Tc superconductors, contains metallic planes adjacent to insulating metal-oxide layers. In every case, these layers can support virtual oxygen p to metal d excitations. © 1989.

author list (cited authors)

  • Richert, B. A., & Allen, R. E.

citation count

  • 1

publication date

  • February 1989