@article{1163,
  abstract     = {We investigate the effect of the electron-hole (e-h) symmetry breaking on d-wave superconductivity induced by non-local effects of correlations in the generalized Hubbard model. The symmetry breaking is introduced in a two-fold manner: by the next-to-nearest neighbor hopping of electrons and by the charge-bond interaction - the off-diagonal term of the Coulomb potential. Both terms lead to a pronounced asymmetry of the superconducting order parameter. The next-to-nearest neighbor hopping enhances superconductivity for h-doping, while diminishes it for e-doping. The charge-bond interaction alone leads to the opposite effect and, additionally, to the kinetic-energy gain upon condensation in the underdoped regime. With both terms included, with similar amplitudes, the height of the superconducting dome and the critical doping remain in favor of h-doping. The influence of the charge-bond interaction on deviations from symmetry of the shape of the gap at the Fermi surface in the momentum space is briefly discussed.},
  author       = {Wysokiński, Marcin and Kaczmarczyk, Jan},
  issn         = {09538984},
  journal      = {Journal of Physics: Condensed Matter},
  number       = {8},
  publisher    = {IOP Publishing Ltd.},
  title        = {{Unconventional superconductivity in generalized Hubbard model role of electron–hole symmetry breaking terms}},
  doi          = {10.1088/1361-648X/aa532f},
  volume       = {29},
  year         = {2017},
}