| Literature DB >> 11690300 |
P D Johnson1, T Valla, A V Fedorov, Z Yusof, B O Wells, Q Li, A R Moodenbaugh, G D Gu, N Koshizuka, C Kendziora, S Jian, D G Hinks.
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.Entities:
Year: 2001 PMID: 11690300 DOI: 10.1103/PhysRevLett.87.177007
Source DB: PubMed Journal: Phys Rev Lett ISSN: 0031-9007 Impact factor: 9.161