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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 · Physical Review B

T1

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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.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
Bi2Sr2CaCu2O8+δ

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—Pressure not reportedunknown

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