Single hole dispersion relation for the real CuO2 plane
Abstract
Dispersion relation for the CuO2 hole is calculated basing 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..-0.25, t/t=0.1..0.15, and three-site terms 2tN tS J/4, have been strongly justified previously. Physical reasons for their values are also discussed. Self-consistent Born approximation is used for the calculation of the hole dispersion. An excellent agreement between calculated E k and one obtained from the angle-resolved photoemission experiments is found.
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