{
  "id": "1302.5036",
  "version": "v2",
  "published": "2013-02-20T17:04:10.000Z",
  "updated": "2013-12-18T14:48:32.000Z",
  "title": "Electron-Electron Interactions and Plasmon Dispersion in Graphene",
  "authors": [
    "L. S. Levitov",
    "A. V. Shtyk",
    "M. V. Feigelman"
  ],
  "comment": "9 pgs, 2 fgs",
  "journal": "Phys. Rev. B 88, 235403 (2013)",
  "doi": "10.1103/PhysRevB.88.235403",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Plasmons in two-dimensional electron systems with nonparabolic bands, such as graphene, feature strong dependence on electron-electron interactions. We use a many-body approach to relate plasmon dispersion at long wavelengths to Landau Fermi-liquid interactions and quasiparticle velocity. An identical renormalization is shown to arise for the magnetoplasmon resonance. For a model with N>>1 fermion species, this approach predicts a power-law dependence for plasmon frequency vs. carrier concentration, valid in a wide range of doping densities, both high and low. Gate tunability of plasmons in graphene can be exploited to directly probe the effects of electron-electron interaction.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-12-18T14:48:32.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "72.80.Vp",
      "78.67.Wj"
    ],
    "keywords": [
      "electron-electron interaction",
      "landau fermi-liquid interactions",
      "two-dimensional electron systems",
      "relate plasmon dispersion",
      "feature strong dependence"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2013,
      "month": "Dec",
      "volume": 88,
      "number": 23,
      "pages": 235403
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013PhRvB..88w5403L"
    }
  }
}