Kink structure in the electronic dispersion of high-Tc superconductors from the electron-phonon interaction

Details Kink structure in the electronic dispersion of high-Tc superconductors from the electron-phonon interaction Kink structure in the electronic dispersion of high-Tc superconductors from the electron-phonon interaction

2008-05-28

arxiv.org/abs/0805.4276v1

Phys. Rev. B 77 (2008) 184519

Physics

Condensed Matter

Strongly Correlated Electrons

15 pages, 8 figures. to be published in Phys. Rev. B 77, No.18 (2008)

Scientific paper

10.1103/PhysRevB.77.184519

We investigate the electronic dispersion of high-Tc superconductor on the basis of the two-dimensional three-band Hubbard model with the electron-phonon interaction together with the strong electron-electron interaction. In our model, it is shown across the hole-doped region of high-Tc superconductor that the electron-phonon interaction makes a dispersion kink, observed along the nodal direction, and that the small isotope effect appears on the electronic dispersion.

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