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Photoemission, Inverse Photoemission and X-Ray Absorption Spectroscopies of Bi2Sr2CaCu2O8

  • T. Takahashi
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 89)

Abstract

A systematic high-energy-spectroscopic study (angle-resolved photo-emission, inverse photoemission and x-ray absorption) combined with scanning-tunneling spectrocopy has been performed on Bi2Sr2CaCu2O8 to elucidate the nature and origin of the electronic states at the Fermi level. The experimental results indicate that the Fermi-liquid states do exist in the high-T c superconductor and they have a dominant O 2p x−y character with their major weight on CuO2 planes. The Fermi-liquid states would be a kind of “impurity states (bands)” formed in the charge-transfer gap through the strong hybridization between doped O 2p x−y hole orbitals and surrounding empty Cu \(3{d_{{x^2} - {y^2}}}\) orbitals.

Keywords

Fermi Level Impurity State Photoemission Spectrum Inverse Photoemission Resonant Photoemission 
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.

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Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • T. Takahashi
    • 1
  1. 1.Department of PhysicsTohoku UniversitySendai 980Japan

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