Ballistic transmission through a graphene bilayer
| dc.creator | Snyman, I. | |
| dc.creator | Beenakker, C. W. J. | |
| dc.date | 2006-09-11 | |
| dc.date | 2006-12-12 | |
| dc.date.accessioned | 2026-07-07T07:40:07Z | |
| dc.date.available | 2026-07-07T07:40:07Z | |
| dc.description | We calculate the Fermi energy dependence of the (time-averaged) current and shot noise in an impurity-free carbon bilayer (length $L\ll$ width $W$), and compare with known results for a monolayer. At the Dirac point of charge neutrality, the bilayer transmits as two independent monolayers in parallel: Both current and noise are resonant at twice the monolayer value, so that their ratio (the Fano factor) has the same 1/3 value as in a monolayer -- and the same value as in a diffusive metal. The range of Fermi energies around the Dirac point within which this pseudo-diffusive result holds is smaller, however, in a bilayer than in a monolayer (by a factor $l_{\perp}/L$, with $l_{\perp}$ the interlayer coupling length). | |
| dc.description | 6 pages, 7 figures, version to appear in PRB | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0609243 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0609243 | |
| dc.identifier | Phys.Rev.B 75, 045322 (2007) | |
| dc.identifier | doi:10.1103/PhysRevB.75.045322 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/121687 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Ballistic transmission through a graphene bilayer | |
| dc.type | text |