Quantum conductance of graphene nanoribbons with edge defects
| dc.creator | Li, T. C. | |
| dc.creator | Lu, Shao-Ping | |
| dc.date | 2006-09-01 | |
| dc.date.accessioned | 2026-07-07T09:19:06Z | |
| dc.date.available | 2026-07-07T09:19:06Z | |
| dc.description | The conductance of metallic graphene nanoribbons (GNRs) with single defects and weak disorder at their edges is investigated in a tight-binding model. We find that a single edge defect will induce quasi-localized states and consequently cause zero-conductance dips. The center energies and breadths of such dips are strongly dependent on the geometry of GNRs. Armchair GNRs are much more sensitive to a vacancy than zigzag GNRs, but are less sensitive to a weak scatter. More importantly, we find that with a weak disorder, zigzag GNRs will change from metallic to semiconducting due to Anderson localization. But a weak disorder only slightly affects the conductance of armchair GNRs. The influence of edge defects on the conductance will decrease when the widths of GNRs increase. | |
| dc.description | 8 pages and 11 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0609009 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0609009 | |
| dc.identifier | Phys. Rev. B 77, 085408 (2008) | |
| dc.identifier | doi:10.1103/PhysRevB.77.085408 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/154268 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.title | Quantum conductance of graphene nanoribbons with edge defects | |
| dc.type | text |