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

Shigeru Koikegami; Yoshihiro Aiura

doi:10.1103/physrevb.77.184519

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arXiv · 0805.4276

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

Shigeru Koikegami·Yoshihiro Aiura

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Abstract

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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Shigeru Koikegami, Yoshihiro Aiura. 2008-05-28. Kink structure in the electronic dispersion of high-Tc superconductors from the electron-phonon interaction. https://doi.org/10.1103/physrevb.77.184519

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