Study of ARPES data and d-wave superconductivity using electronic models in two dimensions

Abstract

We review the results of an extensive investigation of photoemission spectral weight using electronic models for the high-Tc superconductors. Here we show that some recently reported unusual features of the cuprates namely the presence of (i) flat bands, (ii) small quasiparticle bandwidths, and (iii) antiferromagnetically induced weight, have all a natural explanation within the context of holes moving in the presence of robust antiferromagnetic correlations. Introducing interactions among the hole carriers, a model is constructed which has ${\mathrm{d}}_{{\mathrm{x}}^2-{\mathrm{y}}^2}$ superconductivity, an optimal doping of $\sim 15\%$ (caused by the presence of a large density of states at the top of the valence band), and a critical temperature $\sim 100K$.

11 pages Z-compressed postscript, to appear in the Proceedings to the Stanford Conference on Spectroscopies in Novel superconductors

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Cited by in corpus (1)

• Single and Many Particle Correlation Functions and Uniform Phase Bases for Strongly Correlated Systems