Journal/Book/Conference Title Title
Physical Review Letters
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.
Department of Physics
Original Publication Date
DOI of published version
UNI ScholarWorks, University of Northern Iowa, Rod Library
©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.
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.