Single hole dispersion relation for the real CuO$_2$ plane

Details Single hole dispersion relation for the real CuO$_2$ plane Single hole dispersion relation for the real CuO$_2$ plane

1996-05-24

arxiv.org/abs/cond-mat/9605154v2

Phys. Rev. B, 54, 14914 (1996)

Physics

Condensed Matter

3 pages, 2 figures, misprints corrected, wrong figure 2 replaced

Scientific paper

10.1103/PhysRevB.54.14914

Dispersion relation for the CuO$_2$ hole is calculated basing on the {\it generalized} $t$-$t^{\prime}$-$J$ model, recently derived from the three-band one. Numerical ranges for all model parameters, $t/J=2.4..2.7$, $t^{\prime}/t = 0..-0.25$, $t^{\prime\prime}/t=0.1..0.15$, and three-site terms $2t_N\sim t_S\sim J/4$, 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 $E_{\bf k}$ and one obtained from the angle-resolved photoemission experiments is found.

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