title: Doping and temperature dependence of the mass enhancement observed in the cuprate Bi(2)Sr(2)CaCu(2)O(8+delta).
abstract: High-resolution photoemission is used to study the electronic structure of the cuprate superconductor, Bi(2)Sr(2)CaCu(2)O(8+delta), as a function of hole doping and temperature. A kink observed in the band dispersion in the nodal line in the superconducting state is associated with coupling to a resonant mode observed in neutron scattering. From the measured real part of the self-energy it is possible to extract a coupling constant which is largest in the underdoped regime, then decreasing continuously into the overdoped regime.
authors.affiliation: Department of Physics, Brookhaven National Laboratory, Upton, New York 11973-5000, USA.
authors.forename: P D
authors.initials: PD
authors.lastname: Johnson
authors.forename: T
authors.initials: T
authors.lastname: Valla
authors.forename: A V
authors.initials: AV
authors.lastname: Fedorov
authors.forename: Z
authors.initials: Z
authors.lastname: Yusof
authors.forename: B O
authors.initials: BO
authors.lastname: Wells
authors.forename: Q
authors.initials: Q
authors.lastname: Li
authors.forename: A R
authors.initials: AR
authors.lastname: Moodenbaugh
authors.forename: G D
authors.initials: GD
authors.lastname: Gu
authors.forename: N
authors.initials: N
authors.lastname: Koshizuka
authors.forename: C
authors.initials: C
authors.lastname: Kendziora
authors.forename: S
authors.initials: S
authors.lastname: Jian
authors.forename: D G
authors.initials: DG
authors.lastname: Hinks