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 ${\rm d_{x^2 - y^2}}$ 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 $\sim 100K$.
- Publication:
-
Journal of Physics and Chemistry of Solids
- Pub Date:
- December 1995
- DOI:
- 10.1016/0022-3697(95)00106-9
- arXiv:
- arXiv:cond-mat/9507017
- Bibcode:
- 1995JPCS...56.1645M
- Keywords:
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- Condensed Matter
- E-Print:
- 11 pages Z-compressed postscript, to appear in the Proceedings to the Stanford Conference on Spectroscopies in Novel superconductors