versus k Relations and Many Body Effects in the Model Insulating Copper Oxide Cu
- 6 February 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 74 (6), 964-967
- https://doi.org/10.1103/physrevlett.74.964
Abstract
We report angle resolved photoemission measurements on Cu , an insulating layered copper oxide. We find that the overall width of the highest occupied band and the position of the band maximum at () agree with predictions of the model and other calculations based on the Hubbard model. However, in many regions of the Brillouin zone, the shape of the band differs from these predictions. A comparison of our data with spectra previously reported on metallic samples leads to new suggestions for the phenomenology of doping.
Keywords
This publication has 20 references indexed in Scilit:
- Electronic structure of : Cu 2p x-ray-photoelectron spectra and occupied and unoccupied low-energy statesPhysical Review B, 1994
- Key features in the measured band structure of : Flat bands at and Fermi surface nestingPhysical Review Letters, 1993
- Occurrence of van Hove singularities in YBa2Cu4O8 and YBa2Cu3O6.9Journal of Physics and Chemistry of Solids, 1993
- Optical excitation of polaronic impurities inPhysical Review B, 1993
- Fermi Surfaces, Fermi Liquids, and High-Temperature SuperconductorsScience, 1992
- High-resolution angle-resolved photoemission study of the Fermi surface and the normal-state electronic structure ofPhysical Review B, 1990
- Fermi surfaces of as seen by angle-resolved photoemissionPhysical Review Letters, 1990
- Resonant photoemission study of : Nature of electronic states near the Fermi levelPhysical Review Letters, 1990
- Origin of the electronic states near the Fermi level in high-superconductorsPhysical Review B, 1989
- Anderson Hamiltonian description of the experimental electronic structure and magnetic interactions of copper oxide superconductorsPhysical Review B, 1987