Abstract
Dispersion relation for the Cu hole is calculated based on the generalized model, recently derived from the three-band one. Numerical ranges for all model parameters, , , , and three-site terms have been strongly justified previously. Physical reasons for their values are also discussed. A self-consistent Born approximation is used for the calculation of the hole dispersion. Good agreement between calculated and one obtained from the angle-resolved photoemission experiments is found. A possible explanation of the broad peaks in the experimental energy distribution curves at the top of the hole band is presented.
- Received 24 May 1996
DOI:https://doi.org/10.1103/PhysRevB.54.14914
©1996 American Physical Society