On the determination of the Fermi surface in high-Tc superconductors by angle-resolved photoemission spectroscopy

Abstract

We study the normal state electronic excitations probed by angle resolved photoemission spectroscopy (ARPES) in Bi2201 and Bi2212. Our main goal is to establish explicit criteria for determining the Fermi surface from ARPES data on strongly interacting systems where sharply defined quasiparticles do not exist and the dispersion is very weak in parts of the Brillouin zone. Additional complications arise from strong matrix element variations within the zone. We present detailed results as a function of incident photon energy, and show simple experimental tests to distinguish between an intensity drop due to matrix element effects and spectral weight loss due to a Fermi crossing. We reiterate the use of polarization selection rules in disentangling the effect of umklapps due to the BiO superlattice in Bi2212. We conclude that, despite all the complications, the Fermi surface can be determined unambiguously: it is a single large hole barrel centered about (pi,pi) in both materials.

arXiv commentExpanded discussion of symmetrization method in Section 5, figures remain the same

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• Renormalization of spectral lineshape and dispersion below Tc in Bi2Sr2CaCu2O8+d
• Phenomenological Models for the Gap Anisotropy of Bi-2212 as Measured by ARPES
• Evolution of the Fermi surface with carrier concentration in Bi_2Sr_2CaCu_2O_{8+δ}
• Electronic excitations in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_8$ : Fermi surface, dispersion, and absence of bilayer splitting
• Quasiparticles in the superconducting state of Bi2Sr2CaCu2O8
• Importance of matrix elements in the ARPES spectra of BISCO
• Direct observation of particle-hole mixing in the superconducting state by angle-resolved photoemission
• The Fermi surface of Bi2Sr2CaCu2O8
• The joys and pitfalls of Fermi surface mapping in Bi2212 using angle resolved photoemission
• Extraction of the Electron Self-Energy from Angle Resolved Photoemission Data: Application to Bi2212
• Photoelectron Escape Depth and Inelastic Secondaries in High Temperature Superconductors
• Hot Spots on the Fermi Surface of Bi2212: Stripes versus Superstructure

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• "Waterfalls" in cuprates
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• Fermi surface induced lattice distortion in NbTe${}_2$
• ARPES study of Pb doped Bi_2Sr_2CaCu_2O_8 - a new Fermi surface picture
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• The Full Mottness
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• A proposal to determine the spectrum of pairing-glue in high-temperature superconductors
• Strong renormalization of the Fermi-surface topology close to the Mott transition
• Dual character of the electronic structure in YBa2Cu4O8: conduction bands of CuO2 planes and CuO chains
• Central peak in the pseudogap of high T_c superconductors
• Dependence of the superconducting effective mass on doping in cuprates
• Bi-layer splitting in overdoped high $T_c$ cuprates
• Mesoscopic variations of local density of states in disordered superconductors
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• Determination of Fermi surface by charge density correlations
• Theory of ARPES intensities from the CuO${}_2$ plane
• Band splitting and relative spin alignment in bilayer systems