High-Energy Kink Observed in the Electron Dispersion of High-Temperature Cuprate Superconductors

Authors

T. Valla, Brookhaven National LaboratoryFollow
T. E. Kidd, University of Northern IowaFollow
W.-G. Yin, Brookhaven National LaboratoryFollow
G. D. Gu, Brookhaven National LaboratoryFollow
Z.-H. Pan, Lawrence Berkeley National LaboratoryFollow
A. V. Fedorov, Lawrence Berkeley National LaboratoryFollow

Document Type

Article

Journal/Book/Conference Title Title

Physical Review Letters

Volume

98

Issue

16

First Page

167003-1

Last Page

167003-4

Abstract

Photoemission studies show the presence of a high-energy anomaly in the observed band dispersion for two families of cuprate superconductors, Bi2Sr2CaCu₂O_8+δ and La_2-xBa_xCuO₄. 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.

Department

Department of Physics

Comments

First published in Physical Review Letters, v. 98, n. 16 (2007), published by the American Physical Society. DOI: 10.1103/PhysRevLett.98.167003

Original Publication Date

4-2007

DOI of published version

10.1103/PhysRevLett.98.167003

Repository

UNI ScholarWorks, University of Northern Iowa, Rod Library

Copyright

©2007 T. Valla, T.E. Kidd, W.-G. Yin, G.D. Gu, P.D. Johnson, Z.-H. Pan, and A.V. Fedorov. The copyright holder has granted permission for posting.

Date Digital

2007

Language

EN

File Format

application/pdf

Recommended Citation

Valla, T.; Kidd, T. E.; Yin, W.-G.; Gu, G. D.; Pan, Z.-H.; and Fedorov, A. V., "High-Energy Kink Observed in the Electron Dispersion of High-Temperature Cuprate Superconductors" (2007). Faculty Publications. 12.
https://scholarworks.uni.edu/phy_facpub/12