Fermi arcs in cuprate superconductors: tracking the pseudogap below Tc and above T*
arXiv:0707.1549 · doi:10.1103/PhysRevB.76.060502
Abstract
Using an energy-momentum dispersion for Bi2Sr2CaCu2O8 obtained from angle-resolved photoelectron spectroscopy we show that the shrinking Fermi arc model of the pseudogap is inconsistent with Raman scattering below Tc and specific heat near T*. By simulating the quasiparticle energy dispersion curves we show that Fermi arcs are an artifact of a T-dependent scattering rate.
5 pages, 6 figures, accepted for publication as a Rapid Communication in Physical Review B