---
_id: '1163'
abstract:
- lang: eng
  text: '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.'
article_number: '085604'
article_processing_charge: No
author:
- first_name: Marcin
  full_name: Wysokiński, Marcin
  last_name: Wysokiński
- first_name: Jan
  full_name: Kaczmarczyk, Jan
  id: 46C405DE-F248-11E8-B48F-1D18A9856A87
  last_name: Kaczmarczyk
  orcid: 0000-0002-1629-3675
citation:
  ama: 'Wysokiński M, Kaczmarczyk J. Unconventional superconductivity in generalized
    Hubbard model role of electron–hole symmetry breaking terms. <i>Journal of Physics:
    Condensed Matter</i>. 2017;29(8). doi:<a href="https://doi.org/10.1088/1361-648X/aa532f">10.1088/1361-648X/aa532f</a>'
  apa: 'Wysokiński, M., &#38; Kaczmarczyk, J. (2017). Unconventional superconductivity
    in generalized Hubbard model role of electron–hole symmetry breaking terms. <i>Journal
    of Physics: Condensed Matter</i>. IOP Publishing Ltd. <a href="https://doi.org/10.1088/1361-648X/aa532f">https://doi.org/10.1088/1361-648X/aa532f</a>'
  chicago: 'Wysokiński, Marcin, and Jan Kaczmarczyk. “Unconventional Superconductivity
    in Generalized Hubbard Model Role of Electron–Hole Symmetry Breaking Terms.” <i>Journal
    of Physics: Condensed Matter</i>. IOP Publishing Ltd., 2017. <a href="https://doi.org/10.1088/1361-648X/aa532f">https://doi.org/10.1088/1361-648X/aa532f</a>.'
  ieee: 'M. Wysokiński and J. Kaczmarczyk, “Unconventional superconductivity in generalized
    Hubbard model role of electron–hole symmetry breaking terms,” <i>Journal of Physics:
    Condensed Matter</i>, vol. 29, no. 8. IOP Publishing Ltd., 2017.'
  ista: 'Wysokiński M, Kaczmarczyk J. 2017. Unconventional superconductivity in generalized
    Hubbard model role of electron–hole symmetry breaking terms. Journal of Physics:
    Condensed Matter. 29(8), 085604.'
  mla: 'Wysokiński, Marcin, and Jan Kaczmarczyk. “Unconventional Superconductivity
    in Generalized Hubbard Model Role of Electron–Hole Symmetry Breaking Terms.” <i>Journal
    of Physics: Condensed Matter</i>, vol. 29, no. 8, 085604, IOP Publishing Ltd.,
    2017, doi:<a href="https://doi.org/10.1088/1361-648X/aa532f">10.1088/1361-648X/aa532f</a>.'
  short: 'M. Wysokiński, J. Kaczmarczyk, Journal of Physics: Condensed Matter 29 (2017).'
date_created: 2018-12-11T11:50:29Z
date_published: 2017-01-16T00:00:00Z
date_updated: 2023-09-20T11:25:32Z
day: '16'
department:
- _id: MiLe
doi: 10.1088/1361-648X/aa532f
ec_funded: 1
external_id:
  isi:
  - '000393955500001'
intvolume: '        29'
isi: 1
issue: '8'
language:
- iso: eng
month: '01'
oa_version: None
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
publication: 'Journal of Physics: Condensed Matter'
publication_identifier:
  issn:
  - '09538984'
publication_status: published
publisher: IOP Publishing Ltd.
publist_id: '6194'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Unconventional superconductivity in generalized Hubbard model role of electron–hole
  symmetry breaking terms
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 29
year: '2017'
...