SINGLE-HOLE DISPERSION-RELATION FOR THE REAL CUO2 PLANE

Dispersion relation for the CuO2 hole is calculated based on the gener alized t-t'-J model, recently derived from the three-band one. Numeric al ranges for all model parameters, t/J=2.4-2.7, t'/t=0.0 to -0.25, t ''/t=0.1-0.15, and three-site terms 2t(N) similar to t(S) similar to J /4 have been strongly justified previously. Physical reasons for their values are also discussed. A self-consistent Born approximation is us ed for the calculation of the hole dispersion. Good agreement between calculated E(k) and one obtained from the angle-resolved photoemission experiments is found. A possible explantation of the broad peaks in t he experimental energy distribution curves at the top of the hole band is presented.