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

Abstract

Photoemission studies show the presence of a high-energy anomaly in the observed band dispersion for two families of cuprate superconductors, Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} and La{sub 2-x}Ba{sub x}CuO{sub 4}. 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.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
930643
Report Number(s):
BNL-81062-2008-JA
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US200901%%11
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; PHOTOEMISSION; HIGH-TC SUPERCONDUCTORS; BISMUTH OXIDES; STRONTIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; LANTHANUM OXIDES; BARIUM OXIDES; ELECTRONIC STRUCTURE; SPIN; national synchrotron light source

Citation Formats

Valla,T., Kidd, T., Yin, W., Gu, G., Johnson, P., Pan, Z., and Fedorov, A. High-Energy Kink in the Electron Dispersion of High Temperature Cuprate Superconductors. United States: N. p., 2007. Web. doi:10.1103/PhysRevLett.98.167003.
Valla,T., Kidd, T., Yin, W., Gu, G., Johnson, P., Pan, Z., & Fedorov, A. High-Energy Kink in the Electron Dispersion of High Temperature Cuprate Superconductors. United States. doi:10.1103/PhysRevLett.98.167003.
Valla,T., Kidd, T., Yin, W., Gu, G., Johnson, P., Pan, Z., and Fedorov, A. Mon . "High-Energy Kink in the Electron Dispersion of High Temperature Cuprate Superconductors". United States. doi:10.1103/PhysRevLett.98.167003.
@article{osti_930643,
title = {High-Energy Kink in the Electron Dispersion of High Temperature Cuprate Superconductors},
author = {Valla,T. and Kidd, T. and Yin, W. and Gu, G. and Johnson, P. and Pan, Z. and Fedorov, A.},
abstractNote = {Photoemission studies show the presence of a high-energy anomaly in the observed band dispersion for two families of cuprate superconductors, Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} and La{sub 2-x}Ba{sub x}CuO{sub 4}. 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.},
doi = {10.1103/PhysRevLett.98.167003},
journal = {Physical Review Letters},
number = ,
volume = 98,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}