Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2008-02-14
Physics
Condensed Matter
Strongly Correlated Electrons
4.3 pages, 4 figures, accepted for publication in Phys. Rev. B
Scientific paper
10.1103/PhysRevB.77.092503
The flux phase predicted by the $t-J$ model in the large-N limit exhibits features that make it a candidate for describing the pseudogap regime of cuprates. However certain properties, as for instance the prediction of well defined quasiparticle peaks, speak against this scenario. We have addressed these issues by computing self-energy renormalizations in the vicinity to flux phase. The calculated spectral functions show features similar to those observed in experiments. At low doping, near the flux phase, the spectral functions are anisotropic on the Fermi surface and very incoherent near the hot spots. The temperature and doping evolution of self-energy and spectral functions are discussed and compared with the experiment.
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