Electronic structure of strongly correlated d-wave superconductors

Details Electronic structure of strongly correlated d-wave superconductors Electronic structure of strongly correlated d-wave superconductors

2005-12-25

arxiv.org/abs/cond-mat/0512646v2

Phys. Rev. Lett. 96, 207002 (2006)

Physics

Condensed Matter

Superconductivity

final version, comparison to experiments added, 4+ pages, 4 figures

Scientific paper

10.1103/PhysRevLett.96.207002

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.

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