High-Energy Kink Observed In The Electron Dispersion Of High-Temperature Cuprate Superconductors

Authors

T. Valla, Brookhaven National Laboratory Condensed Matter Physics and Materials Science DepartmentFollow
T. E. Kidd, Brookhaven National Laboratory Condensed Matter Physics and Materials Science DepartmentFollow
W. G. Yin, Brookhaven National Laboratory Condensed Matter Physics and Materials Science Department
G. D. Gu, Brookhaven National Laboratory Condensed Matter Physics and Materials Science DepartmentFollow
P. D. Johnson, Brookhaven National Laboratory Condensed Matter Physics and Materials Science DepartmentFollow
Z. H. Pan, Lawrence Berkeley National LaboratoryFollow
A. V. Fedorov, Lawrence Berkeley National LaboratoryFollow

Document Type

Article

Journal/Book/Conference Title

Physical Review Letters

Volume

98

Issue

16

Abstract

Photoemission studies show the presence of a high-energy anomaly in the observed band dispersion for two families of cuprate superconductors, Bi2Sr2CaCu2O8+δ and La2-xBaxCuO4. The anomaly, which occurs at a binding energy of approximately 340 meV, is found to be anisotropic and relatively weakly doping dependent. Scattering from short range or nearest neighbor spin excitations is found to supply an adequate description of the observed phenomena. © 2007 The American Physical Society.

Department

Department of Physics

Original Publication Date

4-18-2007

DOI of published version

10.1103/PhysRevLett.98.167003

Recommended Citation

Valla, T.; Kidd, T. E.; Yin, W. G.; Gu, G. D.; Johnson, P. D.; Pan, Z. H.; and Fedorov, A. V., "High-Energy Kink Observed In The Electron Dispersion Of High-Temperature Cuprate Superconductors" (2007). Faculty Publications. 2616.
https://scholarworks.uni.edu/facpub/2616