The normal state Fermi surface of pristine and Pb-doped Bi2212 from ARPES measurements and its photon energy independence

Abstract

We address the question as to whether the topology of the normal state Fermi surface of Bi2212 - as seen in angle resolved photoemission - depends on the photon energy used to measure it. High resolution photoemission spectra and Fermi surface maps from pristine and Pb-doped Bi2212 are presented, recorded using both polarised and unpolarised radiation of differing energies. The data show clearly that no main band crosses the Fermi surface along the GMZ direction in reciprocal space, even for a photon energy of 32 eV, thus ruling out the existence of a G-centred, electron-like Fermi surface in this archetypal high Tc superconductor. The true topology of the normal state Fermi surface remains that of hole-like barrels centred at the X,Y points of the Brillouin zone.

arXiv comment4 pages (revtex), 4 figures (jpg)

References in corpus (4)

• Electronic excitations in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_8$ : Fermi surface, dispersion, and absence of bilayer splitting
• Importance of matrix elements in the ARPES spectra of BISCO
• The Fermi surface of Bi2Sr2CaCu2O8
• The joys and pitfalls of Fermi surface mapping in Bi2212 using angle resolved photoemission

Cited by in corpus (8)

• Pseudogap in High - Temperature Superconductors
• Origin of the peak-dip-hump structure in the photoemission spectra of Bi2212
• Doping dependence of the Fermi surface in Bi(Pb)2212
• Surprises in the doping dependence of the Fermi surface in Bi(Pb)-2212
• ARPES study of Pb doped Bi_2Sr_2CaCu_2O_8 - a new Fermi surface picture
• Estimation of matrix element effects and determination of the Fermi surface in BSCCO systems using angle-scanned photoemission spectroscopy
• Angle resolved photoemission spectroscopy of Sr_2CuO_2Cl_2 - a revisit
• Evolution of Incommensurate Superstructure and Electronic Structure with Pb Substitution in (Bi${}_{2-x}$Pb${}_x$)Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ Superconductors