Parity law of the singlet-triplet gap in graphitic ribbons
| dc.creator | Hajj, Mohamad Al | |
| dc.creator | Alet, Fabien | |
| dc.creator | Capponi, Sylvain | |
| dc.creator | Lepetit, Marie Bernadette | |
| dc.creator | Malrieu, Jean-Paul | |
| dc.creator | Todo, Synge | |
| dc.date | 2006-01-13 | |
| dc.date | 2006-08-24 | |
| dc.date.accessioned | 2026-07-07T06:57:33Z | |
| dc.date.available | 2026-07-07T06:57:33Z | |
| dc.description | This work explores the possibility to transfer the parity law of the singlet-triplet gap established for square ladders (gapped for even number of legs, gapless for odd number of legs) to fused polyacenic 1-D systems, i.e., graphite ribbons. Qualitative arguments are presented in favor of a gapped character when the number $n\_ω$ of benzene rings along the ribbon width is odd. A series of numerical calculations (quantitative mapping on spin 1/2 chains, renormalized excitonic treatments and Quantum Monte Carlo) confirm the parity law and the gapless character of the ribbon for even $n\_ω$. | |
| dc.description | 7 pages, 7 figures, published version | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0601293 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0601293 | |
| dc.identifier | European Physical Journal B 51 (2006) 517 | |
| dc.identifier | doi:10.1140/epjb/e2006-00259-9 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/107008 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | Parity law of the singlet-triplet gap in graphitic ribbons | |
| dc.type | text |