{
  "id": "1301.1257",
  "version": "v1",
  "published": "2013-01-07T16:45:14.000Z",
  "updated": "2013-01-07T16:45:14.000Z",
  "title": "Quantum Hall Effect in Hydrogenated Graphene",
  "authors": [
    "J. Guillemette",
    "S. S. Sabri",
    "B. Wu",
    "K. Bennaceur",
    "P. E. Gaskell",
    "M. Savard",
    "P. L. Lévesque",
    "F. Mahvash",
    "A. Guermoune",
    "M. Siaj",
    "R. Martel",
    "T. Szkopek",
    "G. Gervais"
  ],
  "comment": "4 pages, 4 figures + supplemental info",
  "journal": "Phys. Rev. Lett. 110, 176801 (2013)",
  "doi": "10.1103/PhysRevLett.110.176801",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci",
    "cond-mat.str-el"
  ],
  "abstract": "The quantum Hall effect is observed in a two-dimensional electron gas formed in millimeter-scale hydrogenated graphene, with a mobility less than 10 $\\mathrm{cm^{2}/V\\cdot s}$ and corresponding Ioffe-Regel disorder parameter $(k_{F}\\lambda)^{-1}\\gg1$. In zero magnetic field and low temperatures, the hydrogenated graphene is insulating with a two-point resistance of order of $250 h/e^2$. Application of a strong magnetic field generates a negative colossal magnetoresistance, with the two-point resistance saturating within 0.5% of $h/2e^{2}$ at 45T. Our observations are consistent with the opening of an impurity-induced gap in the density of states of graphene. The interplay between electron localization by defect scattering and magnetic confinement in two-dimensional atomic crystals is discussed.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2013-01-07T16:45:14.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.22.Pr",
      "73.20.At",
      "73.43.-f"
    ],
    "keywords": [
      "quantum hall effect",
      "hydrogenated graphene",
      "strong magnetic field generates",
      "two-point resistance",
      "two-dimensional atomic crystals"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2013,
      "month": "Apr",
      "volume": 110,
      "number": 17,
      "pages": 176801
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013PhRvL.110q6801G"
    }
  }
}