Effect of electron-electron interactions on the conductivity of clean graphene
| dc.creator | Mishchenko, E. G. | |
| dc.date | 2006-12-27 | |
| dc.date | 2007-05-21 | |
| dc.date.accessioned | 2026-07-07T08:02:19Z | |
| dc.date.available | 2026-07-07T08:02:19Z | |
| dc.description | Minimal conductivity of a single undoped graphene layer is known to be of the order of the conductance quantum, independent of the electron velocity. We show that this universality does not survive electron-electron interaction which results in the non-trivial frequency dependence. We begin with analyzing the perturbation theory in the interaction parameter 'g' for the electron self-energy and observe the failure of the random-phase approximation. The optical conductivity is then derived from the quantum kinetic equation and the exact result is obtained in the limit when g << 1 << g lnω. | |
| dc.description | 4 pages, 3 figures; final version | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0612651 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0612651 | |
| dc.identifier | Phys. Rev. Lett. 98, 216801 (2007) | |
| dc.identifier | doi:10.1103/PhysRevLett.98.216801 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/129200 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Effect of electron-electron interactions on the conductivity of clean graphene | |
| dc.type | text |