Possible d-like symmetry pairing states in the extended Hubbard model

Zsolt Szabó, Z. Gulácsi

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1 Citation (Scopus)

Abstract

Superconducting phases of the extended Hubbard model has been investigated in the weak-coupling limit at different temperatures and doping levels in the presence of on-site, nearest-neighbour and next-nearest-neighbour couplings. The main result is the occurrence of stable pairing states of different symmetries depending on the tunable parameters of the model; attractive nearest-neighbour couplings give rise to a stable superconducting state having dx2-y2 symmetry, while attractive next-nearest-neighbour interactions favour pairing states of dxy symmetry.

Original languageEnglish
Pages (from-to)833-837
Number of pages5
JournalPhilosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume76
Issue number5
Publication statusPublished - Nov 1997

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Hubbard model
Doping (additives)
symmetry
Temperature
occurrences
interactions
temperature

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)

Cite this

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