The incommensurate charge-density-wave instability in the extended three-band Hubbard model
arXiv:cond-mat/9707109 · doi:10.1103/PhysRevB.57.4382
Abstract
The infinite-U three-band Hubbard model is considered in order to describe the CuO_2 planes of the high temperature superconducting cuprates. The charge instabilities are investigated when the model is extended with a nearest-neighbor repulsion between holes on copper d and oxygen p orbitals and in the presence of a long-range Coulombic repulsion. It is found that a first-order valence instability line ending with a critical point is present like in the previously investigated model without long-range forces. However, the dominant critical instability is the formation of incommensurate charge-density-waves, which always occur before the valence-instability critical point is reached. An effective singular attraction arises in the proximity of the charge-density wave instability, accounting for both a strong pairing mechanism and for the anomalous normal state properties.
arXiv comment15 pages in RevteX. Figures available from M. Grilli
References in corpus (14)
- Coexistence of, and Competition between, Superconductivity and Charge-Stripe Order in La(1.6-x)Nd(0.4)Sr(x)CuO(4)
- Non Fermi-Liquid States and Pairing of a general Model of Copper-Oxide Metals
- Singular quasiparticle scattering in the proximity of charge instabilities
- A Survey of the Van Hove Scenario for High-T_c Superconductivity With Special Emphasis on Pseudogaps and Striped Phases
- Toward a Unified Magnetic Phase Diagram of the Cuprate Superconductors
- Non-Fermi-liquid behavior and d-wave superconductivity near the charge-density-wave quantum critical point
- d-wave superconductivity near charge instabilities
- The Electron-Phonon Interaction in the Presence of Strong Correlations
- Charge-density-waves and superconductivity as an alternative to phase separation in the infinite-U Hubbard-Holstein model
- New magnetic coherence effect in superconducting La_{2-x}Sr_{x}CuO_{4}
- Consistent low-energy reduction of the three-band model for copper oxides with O-O hopping to the effective t-J model
- Optical properties of an effective one-band Hubbard model for the cuprates
- Phase separation and valence instabilities in cuprate superconductors. Effective one-band model approach
- Phase separation and the existence of superconductivity in a one-dimensional copper-oxygen model