{
  "id": "1212.4309",
  "version": "v1",
  "published": "2012-12-18T11:15:22.000Z",
  "updated": "2012-12-18T11:15:22.000Z",
  "title": "Epitaxial Graphene Nanoribbons on Bunched Steps of a 6H-SiC(0001) Substrate: Aromatic Ring Pattern and Van Hove Singularities",
  "authors": [
    "M. Ridene",
    "T. Wassmann",
    "E. Pallecchi",
    "G. Rodary",
    "J. C. Girard",
    "A. Ouerghi1"
  ],
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We report scanning tunneling microscopy and spectroscopy investigation of graphene nanoribbons grown on an array of bunched steps of a 6H-SiC(0001) substrate. Our scanning tunneling microscopy images of a graphene nanoribbons on a step terrace feature a (sqrt(3)x sqrt(3))R30{\\deg} pattern of aromatic rings which define our armchair nanoribbons. This is in agreement to a simulation based on density functional theory. As another signature of the one-dimensional electronic structure, in the corresponding scanning tunneling spectroscopy spectra we find well developed, sharp Van Hove singularities.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2012-12-18T11:15:22.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "61.48.Gh",
      "68.65.Pq",
      "81.05.ue",
      "68.37.Ef",
      "68.35.bp"
    ],
    "keywords": [
      "epitaxial graphene nanoribbons",
      "aromatic ring pattern",
      "bunched steps",
      "scanning tunneling spectroscopy spectra",
      "sharp van hove singularities"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1063/1.4796170",
      "journal": "Applied Physics Letters",
      "year": 2013,
      "month": "Mar",
      "volume": 102,
      "number": 11,
      "pages": 111610
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013ApPhL.102k1610R"
    }
  }
}