← Back to search

Doping and Temperature Dependence of the Mass Enhancement Observed in the Cuprate Bi2Sr2CaCu2O8+δ

P. D. Johnson, T. Valla, A. V. Fedorov, Z. Yusof, B. O. Wells, Q. Li, A. R. Moodenbaugh, G. D. Gu, N. Koshizuka, C. Kendziora, Sha Jian, D. G. Hinks

DOI 10.1103/PhysRevLett.87.177007 · Physical Review Letters

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

High-resolution photoemission is used to study the electronic structure of the cuprate superconductor, Bi2Sr2CaCu2O8+δ, 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.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
Bi2Sr2CaCu2O8+δ

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

91Pressure not reportedunknown
Bi2Sr2CaCu2O8+δ

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

69Pressure not reportedunknown
Bi2Sr2CaCu2O8+δ

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

55Pressure not reportedunknown
YBa2Cu3O6+x

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

74Pressure not reportedunknown

Similar papers