A simple theory for the cuprates: the Antiferro-magnetic van Hove scenario |
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| Authors: | E Dagotto A Nazarenko A Moreo S Haas and M Boninsegni |
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| Affiliation: | (1) Department of Physics, National High Magnetic Field Lab, and Supercomputer Computations Research Institute, Florida State University, 32306 Tallahassee, FL, USA;(2) National Center for Supercomputing Applications, University of Illinois, 61801 Urbana, IL, USA |
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| Abstract: | A model of weakly interacting hole quasiparticles is proposed to describe the normal state of the high temperature superconductors. The effect of strong correlations is contained in the dispersion of the holes. Many-body effects induce anomalous quasiparticleflat bands similar to those observed in recent angle-resolved photoemission experiments. A model of weakly interacting hole quasiparticles is proposed to describe the physics of carriers in the cuprates. The model predicts superconductivity in the dx2-y2 channel, with a typical Tc  100K. The concept of  optimal doping appears naturally in this model, as well as a large ratio 2 / T
c 5. |
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| Keywords: | Superconductivity t-J and Hubbard models Mechanisms |
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