{
  "id": "0801.0302",
  "version": "v1",
  "published": "2008-01-01T15:59:35.000Z",
  "updated": "2008-01-01T15:59:35.000Z",
  "title": "Mesoscopic conductance fluctuations in graphene samples",
  "authors": [
    "Maxim Yu. Kharitonov",
    "Konstantin B. Efetov"
  ],
  "comment": "4+ pages, 2 figures",
  "journal": "Phys. Rev. B 78, 033404 (2008)",
  "doi": "10.1103/PhysRevB.78.033404",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.dis-nn"
  ],
  "abstract": "Mesoscopic conductance fluctuations in graphene samples at energies not very close to the Dirac point are studied analytically. We demonstrate that the conductance variance $<[\\delta G]^2>$ is very sensitive to the elastic scattering breaking the valley symmetry. In the absence of such scattering (disorder potential smooth at atomic scales, trigonal warping negligible), the variance $<[\\delta G]^2 > = 4 < [\\delta G]^2 >_\\text{metal}$ is four times greater than that in conventional metals, which is due to the two-fold valley degeneracy. In the absence of intervalley scattering, but for strong intravalley scattering and/or strong warping $<[\\delta G]^2 > =2 < [\\delta G]^2 >_\\text{metal}$. Only in the limit of strong intervalley scattering $<[\\delta G]^2 > = < [\\delta G]^2 >_\\text{metal}$. Our theory explains recent numerical results and can be used for comparison with existing experiments.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2008-01-01T15:59:35.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.63.-b",
      "72.15.Rn",
      "81.05.Uw"
    ],
    "keywords": [
      "mesoscopic conductance fluctuations",
      "graphene samples",
      "two-fold valley degeneracy",
      "disorder potential smooth",
      "atomic scales"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2008,
      "month": "Jul",
      "volume": 78,
      "number": 3,
      "pages": "033404"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2008PhRvB..78c3404K"
    }
  }
}