TY - JOUR
T1 - Coulomb correlated electronic band structure of cuprate superconductors
AU - Yu, Jaejun
AU - Freeman, A. J.
N1 - Funding Information:
We thank D.D. Koelling and M. Norman for helpful discussions and J.C. Campuzano for making his results available prior to publication. We are also grateful to S.-J. Oh for discussions and D.W. Lynch, A. Virosztek and J. Ruvalds for preprints of their work. Work supported by the National Science Foundation (DMR88-16 126) through the North-western University Materials Research Center and a computing grant from its Division of Advanced Scientific Computing at the National Center for Supercomputer Applications at the University of Illinois, Urbana/Champaign and by a computing grant at the NASA Ames Supercomputing Center.
PY - 1991/2/1
Y1 - 1991/2/1
N2 - The effect of Coulomb correlations on the electronic structure of Cu-oxide superconductors are determined with the many-body corrections to the known band structure made by calculating perturbatively the self-energy due to the on-site Coulomb interaction at the Cu sites. The effective mass enhancement at EF, renormalized band dispersions, and the energy dependence of the band state broadening for Nd2-xCexCuO4 are predicted and found to be in agreement with observations in other Cu-oxide superconductors with a choice of the effective Coulomb interaction parameter U=3 eV.
AB - The effect of Coulomb correlations on the electronic structure of Cu-oxide superconductors are determined with the many-body corrections to the known band structure made by calculating perturbatively the self-energy due to the on-site Coulomb interaction at the Cu sites. The effective mass enhancement at EF, renormalized band dispersions, and the energy dependence of the band state broadening for Nd2-xCexCuO4 are predicted and found to be in agreement with observations in other Cu-oxide superconductors with a choice of the effective Coulomb interaction parameter U=3 eV.
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U2 - 10.1016/0921-4534(91)90380-H
DO - 10.1016/0921-4534(91)90380-H
M3 - Article
AN - SCOPUS:0026107551
VL - 173
SP - 274
EP - 284
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 3-4
ER -