title: Fermi surface of Bi2Sr2CaCu2O8
abstract: We study the Fermi surface of Bi2Sr2CaCu2O8 using angle resolved photoemission spectroscopy (ARPES) with a momentum resolution of approximately 0.01 of the Brillouin zone. We show that, contrary to recent suggestions, the ARPES derived Fermi surface is a large hole barrel centered at (pi,pi), independent of the incident photon energy. We caution that the photon energy and k dependence of the matrix elements, if not properly accounted for, can lead to misinterpretation of ARPES intensities.
authors.affiliation: Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, USA.
authors.initials: HM
authors.lastname: Fretwell
authors.initials: A
authors.lastname: Kaminski
authors.initials: J
authors.lastname: Mesot
authors.initials: JC
authors.lastname: Campuzano
authors.initials: MR
authors.lastname: Norman
authors.initials: M
authors.lastname: Randeria
authors.initials: T
authors.lastname: Sato
authors.initials: R
authors.lastname: Gatt
authors.initials: T
authors.lastname: Takahashi
authors.initials: K
authors.lastname: Kadowaki