The Hubbard model on the triangular lattice: Spiral order and spin liquid
| dc.creator | Sahebsara, Peyman | |
| dc.creator | Sénéchal, David | |
| dc.date | 2007-11-02 | |
| dc.date | 2008-04-15 | |
| dc.date.accessioned | 2026-07-07T09:32:25Z | |
| dc.date.available | 2026-07-07T09:32:25Z | |
| dc.description | We investigate the half-filled Hubbard model on an isotropic triangular lattice with the variational cluster approximation. By decreasing the on-site repulsion $U$ (or equivalently increasing pressure) we go from a phase with long range, three-sublattice, spiral magnetic order, to a non-magnetic Mott insulating phase -- a spin liquid -- and then, for $U\lesssim6.7t$, to a metallic phase. Clusters of sizes 3, 6 and 15 with open boundary conditions are used in these calculations, and an extrapolation to infinite size is argued to lead to a disordered phase at $U=8t$, but to a spiral order at $U\gtrsim 12$. | |
| dc.description | 4 pages, 5 figures (published version) | |
| dc.identifier | https://arxiv.org/abs/0711.0244 | |
| dc.identifier | http://arxiv.org/abs/0711.0244 | |
| dc.identifier | Phys. Rev. Lett. 100, 136402 (2008) | |
| dc.identifier | doi:10.1103/PhysRevLett.100.136402 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/158773 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | The Hubbard model on the triangular lattice: Spiral order and spin liquid | |
| dc.type | text |