{ "id": "cond-mat/0701053", "version": "v2", "published": "2007-01-03T17:49:36.000Z", "updated": "2007-04-12T21:46:57.000Z", "title": "Sum Rules for the Optical and Hall Conductivity in Graphene", "authors": [ "V. P. Gusynin", "S. G. Sharapov", "J. P. Carbotte" ], "comment": "16 pages, RevTeX4, 4 EPS figures; v2: to match PRB version", "journal": "Phys.Rev. B75 (2007) 165407", "doi": "10.1103/PhysRevB.75.165407", "categories": [ "cond-mat.mes-hall" ], "abstract": "Graphene has two atoms per unit cell with quasiparticles exhibiting the Dirac-like behavior. These properties lead to interband in addition to intraband optical transitions and modify the $f$-sum rule on the longitudinal conductivity. The expected dependence of the corresponding spectral weight on the applied gate voltage $V_g$ in a field effect graphene transistor is $\\sim {const}- |V_g|^{3/2}$. For $V_g =0$, its temperature dependence is $T^3$ rather than the usual $T^2$. For the Hall conductivity, the corresponding spectral weight is determined by the Hall frequency $\\omega_H$ which is linear in the carrier imbalance density $\\rho$, and hence proportional to $V_g$, and is different from the cyclotron frequency for Dirac quasiparticles.", "revisions": [ { "version": "v2", "updated": "2007-04-12T21:46:57.000Z" } ], "analyses": { "keywords": [ "hall conductivity", "sum rule", "corresponding spectral weight", "field effect graphene transistor", "carrier imbalance density" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "RevTeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007cond.mat..1053G" } } }