Single-hole dispersion relation for the real CuO₂ plane

Dispersion relation for the CuO₂ hole is calculated based on the generalized t-t^′-J model, recently derived from the three-band one. Numerical 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∼t_S∼J/4 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 E_k 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.