Quantum critical transition from charge-ordered to superconducting state in the triangular lattice negative-U extended Hubbard model
arXiv:0802.1011 · doi:10.1103/PhysRevB.77.180515
Abstract
We demonstrate a robust frustration-driven charge-order to superconductivity transition in the half-filled negative-U extended Hubbard model. Superconductivity extends over a broad region of the parameter space. We argue that the model provides the correct insight to understanding unconventional superconductivity in the organic charge-transfer solids and other quarter-filled systems.
4 pages, 6 EPS fig files
References in corpus (6)
- Mott Transition, Antiferromagnetism, and d-wave Superconductivity in Two-Dimensional Organic Conductors
- Strong electronic correlations in superconducting organic charge transfer salts
- Gapless quantum spin liquid, stripe and antiferromagnetic phases in frustrated Hubbard models in two dimensions
- Superconductivity and a Mott Transition in a Hubbard Model on an Anisotropic Triangular Lattice
- Superlight small bipolarons in the presence of strong Coulomb repulsion
- Temperature-driven transition from the Wigner Crystal to the Bond-Charge-Density Wave in the Quasi-One-Dimensional Quarter-Filled band