Electronic spectrum in high-temperature cuprate superconductors
Abstract
A microscopic theory for electronic spectrum of the CuO2 plane within an effective p-d Hubbard model is proposed. Dyson equation for the single-electron Green function in terms of the Hubbard operators is derived which is solved self-consistently for the self-energy evaluated in the noncrossing approximation. Electron scattering on spin fluctuations induced by kinematic interaction is described by a dynamical spin susceptibility with a continuous spectrum. Doping and temperature dependence of electron dispersions, spectral functions, the Fermi surface and the coupling constant are studied in the hole doped case. At low doping, an arc-type Fermi surface and a pseudogap in the spectral function are observed.
Cite
@article{arxiv.cond-mat/0610163,
title = {Electronic spectrum in high-temperature cuprate superconductors},
author = {N. M. Plakida and V. S. Oudovenko},
journal= {arXiv preprint arXiv:cond-mat/0610163},
year = {2015}
}
Comments
13 pages (revtex), 18 figures, to be published in JETP