CHARGE-FLUCTUATION-INDUCED AND SPIN-FLUCTUATION-INDUCED PAIRING INTERACTION IN AN EXTENDED HUBBARD-MODEL FOR COPPER-OXIDE SUPERCONDUCTORS

Dahm T, TEWORDT L (1993)
Physica C Superconductivity 211(3-4): 440-454.

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A self-consistent and conserving approximation scheme is used to derive the general equations for the quasiparticle self-energies and the dynamic charge and spin susceptibilities in the extended three-band Hubbard model for the CuO2 planes. For inter- and on-site Coulomb repulsions V and U satisfying the condition V greater than or similar to 3/2+1/8 U we obtain a charge transfer resonance at q=0 which gives rise to a large attractive pairing interaction. The pairing interaction with momentum transfers q=0 and q=(pi, 0) is estimated to be strongly attractive over a large range of energies, while it becomes strongly repulsive for q=(pi, pi).
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Dahm T, TEWORDT L. CHARGE-FLUCTUATION-INDUCED AND SPIN-FLUCTUATION-INDUCED PAIRING INTERACTION IN AN EXTENDED HUBBARD-MODEL FOR COPPER-OXIDE SUPERCONDUCTORS. Physica C Superconductivity. 1993;211(3-4):440-454.
Dahm, T., & TEWORDT, L. (1993). CHARGE-FLUCTUATION-INDUCED AND SPIN-FLUCTUATION-INDUCED PAIRING INTERACTION IN AN EXTENDED HUBBARD-MODEL FOR COPPER-OXIDE SUPERCONDUCTORS. Physica C Superconductivity, 211(3-4), 440-454.
Dahm, T., and TEWORDT, L. (1993). CHARGE-FLUCTUATION-INDUCED AND SPIN-FLUCTUATION-INDUCED PAIRING INTERACTION IN AN EXTENDED HUBBARD-MODEL FOR COPPER-OXIDE SUPERCONDUCTORS. Physica C Superconductivity 211, 440-454.
Dahm, T., & TEWORDT, L., 1993. CHARGE-FLUCTUATION-INDUCED AND SPIN-FLUCTUATION-INDUCED PAIRING INTERACTION IN AN EXTENDED HUBBARD-MODEL FOR COPPER-OXIDE SUPERCONDUCTORS. Physica C Superconductivity, 211(3-4), p 440-454.
T. Dahm and L. TEWORDT, “CHARGE-FLUCTUATION-INDUCED AND SPIN-FLUCTUATION-INDUCED PAIRING INTERACTION IN AN EXTENDED HUBBARD-MODEL FOR COPPER-OXIDE SUPERCONDUCTORS”, Physica C Superconductivity, vol. 211, 1993, pp. 440-454.
Dahm, T., TEWORDT, L.: CHARGE-FLUCTUATION-INDUCED AND SPIN-FLUCTUATION-INDUCED PAIRING INTERACTION IN AN EXTENDED HUBBARD-MODEL FOR COPPER-OXIDE SUPERCONDUCTORS. Physica C Superconductivity. 211, 440-454 (1993).
Dahm, Thomas, and TEWORDT, L. “CHARGE-FLUCTUATION-INDUCED AND SPIN-FLUCTUATION-INDUCED PAIRING INTERACTION IN AN EXTENDED HUBBARD-MODEL FOR COPPER-OXIDE SUPERCONDUCTORS”. Physica C Superconductivity 211.3-4 (1993): 440-454.
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