{
  "id": "1612.06663",
  "version": "v1",
  "published": "2016-12-20T13:51:25.000Z",
  "updated": "2016-12-20T13:51:25.000Z",
  "title": "Many-body effects of Coulomb interaction on Landau levels in graphene",
  "authors": [
    "Yu. E. Lozovik",
    "A. A. Sokolik",
    "A. D. Zabolotskiy"
  ],
  "comment": "7 pages, 3 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "In strong magnetic fields, massless electrons in graphene populate relativistic Landau levels with the square-root dependence of each level energy on its number and magnetic field. Interaction-induced deviations from this single-particle picture were observed in recent experiments on cyclotron resonance and magneto-Raman scattering. Previous attempts to calculate such deviations theoretically using the unscreened Coulomb interaction resulted in overestimated many-body effects. This work presents many-body calculations of cyclotron and magneto-Raman transitions in single-layer graphene in the presence of Coulomb interaction, which is statically screened in the random-phase approximation. We take into account self-energy and excitonic effects as well as Landau level mixing, and achieve good agreement of our results with the experimental data for graphene on different substrates. Important role of a self-consistent treatment of the screening is found.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-12-20T13:51:25.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "coulomb interaction",
      "many-body effects",
      "graphene populate relativistic landau levels",
      "strong magnetic fields",
      "important role"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}