{
  "id": "0709.2681",
  "version": "v3",
  "published": "2007-09-17T17:39:10.000Z",
  "updated": "2008-02-08T11:03:06.000Z",
  "title": "Dirac fermions at the H point of graphite: Magneto-transmission studies",
  "authors": [
    "M. Orlita",
    "C. Faugeras",
    "G. Martinez",
    "D. K. Maude",
    "M. L. Sadowski",
    "M. Potemski"
  ],
  "comment": "4 pages, 4 figures, to appear in Phys. Rev. Lett",
  "journal": "Phys. Rev. Lett. 100, 136403 (2008)",
  "doi": "10.1103/PhysRevLett.100.136403",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.other"
  ],
  "abstract": "We report on far infrared magneto-transmission measurements on a thin graphite sample prepared by exfoliation of highly oriented pyrolytic graphite. In magnetic field, absorption lines exhibiting a blue-shift proportional to sqrtB are observed. This is a fingerprint for massless Dirac holes at the H point in bulk graphite. The Fermi velocity is found to be c*=1.02x10^6 m/s and the pseudogap at the H point is estimated to be below 10 meV. Although the holes behave to a first approximation as a strictly 2D gas of Dirac fermions, the full 3D band structure has to be taken into account to explain all the observed spectral features.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2008-02-08T11:03:06.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "71.70.Di",
      "76.40.+b",
      "78.30.-j",
      "81.05.Uw"
    ],
    "keywords": [
      "dirac fermions",
      "magneto-transmission studies",
      "full 3d band structure",
      "far infrared magneto-transmission measurements",
      "thin graphite sample"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2008,
      "month": "Apr",
      "volume": 100,
      "number": 13,
      "pages": 136403
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2008PhRvL.100m6403O"
    }
  }
}