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Superconductivity in the charge-transfer and Mott-Hubbard regimes of the three-band Hubbard model (1996)

Kuroki, Kazuhiko ; Aoki, Hideo

Springer

Journal of low temperature physics 105 (1996), S. 603-608

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ISSN: 1573-7357

Keywords: 74.20.−z ; 74.25.Dw

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract An extensive quantum Monte Carlo calculation is performed to probe a possible electronic origin of the high-temperature superconductivity in cuprates by studying Emery's three-band Hubbard model. The $$d_{x^2 - y^2 }$$ pairing correlation is found to grow with the system size when the d electron repulsion Ud or the d-p level off-set Δɛ exceed the one-electron band width, where the correlation also starts to increase with Ud or Δɛ. We have detected this in both the charge-transfer and Mott-Hubbard regimes for appropriate doping concentrations.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00768450

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