Superconductivity in the charge-transfer and Mott-Hubbard regimes of the three-band Hubbard model
โ Scribed by Kazuhiko Kuroki; Hideo Aoki
- Publisher
- Springer US
- Year
- 1996
- Tongue
- English
- Weight
- 282 KB
- Volume
- 105
- Category
- Article
- ISSN
- 0022-2291
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๐ SIMILAR VOLUMES
We investigate the three-band extended Hubbard model for the CuO 2 planes of high-temperature superconductors. We consider the limit of U = I on Cu atoms and we include the nearest-neighbor Coulomb repulsion between holes on 2p x,y orbitals of oxygen and holes on 3d x 2 รy 2 or 3d 3z 2 รr 2 orbitals
## A set of parameters for the three-band Hubbard model is determlned by comparison of Quantum Monte C~lo results with experimental values for the charge transfer gap. With the obtained parameter set we have calculated the spectral function A(k,t~) for the one-particle Green's function. We find ve