Electronic structure of strongly correlated d-wave superconductors
Abstract
We study the electronic structure of a strongly correlated d-wave superconducting state. Combining a renormalized mean field theory with direct calculation of matrix elements, we obtain explicit analytical results for the nodal Fermi velocity, v_F, the Fermi wave vector, k_F, and the momentum distribution, n_k, as a function of hole doping in a Gutzwiller projected d-wave superconductor. We calculate the energy dispersion, E_k, and spectral weight of the Gutzwiller-Bogoliubov quasiparticles, and find that the spectral weight associated with the quasiparticle excitation at the antinodal point shows a non monotonic behavior as a function of doping. Results are compared to angle resolved photoemission spectroscopy (ARPES) of the high temperature superconductors.
Keywords
Cite
@article{arxiv.cond-mat/0512646,
title = {Electronic structure of strongly correlated d-wave superconductors},
author = {Bernhard Edegger and V. N. Muthukumar and Claudius Gros and P. W. Anderson},
journal= {arXiv preprint arXiv:cond-mat/0512646},
year = {2009}
}
Comments
final version, comparison to experiments added, 4+ pages, 4 figures