{ "id": "0908.1900", "version": "v1", "published": "2009-08-13T15:20:41.000Z", "updated": "2009-08-13T15:20:41.000Z", "title": "How Graphene-like is Epitaxial Graphene? \\\\Quantum Oscillations and Quantum Hall Effect", "authors": [ "Johannes Jobst", "Daniel Waldmann", "Florian Speck", "Roland Hirner", "Duncan K. Maude", "Thomas Seyller", "Heiko B. Weber" ], "doi": "10.1103/PhysRevB.81.195434", "categories": [ "cond-mat.mes-hall" ], "abstract": "We investigate the transport properties of high-quality single-layer graphene, epitaxially grown on a 6H-SiC(0001) substrate. We have measured transport properties, in particular charge carrier density, mobility, conductivity and magnetoconductance of large samples as well as submicrometer-sized Hall bars which are entirely lying on atomically flat substrate terraces. The results display high mobilities, independent of sample size and a Shubnikov-de Haas effect with a Landau level spectrum of single-layer graphene. When gated close to the Dirac point, the mobility increases substantially, and the graphene-like quantum Hall effect occurs. This proves that epitaxial graphene is ruled by the same pseudo-relativistic physics observed previously in exfoliated graphene.", "revisions": [ { "version": "v1", "updated": "2009-08-13T15:20:41.000Z" } ], "analyses": { "subjects": [ "73.43.-f", "72.20.My" ], "keywords": [ "epitaxial graphene", "transport properties", "oscillations", "graphene-like quantum hall effect occurs", "results display high mobilities" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2010, "month": "May", "volume": 81, "number": 19, "pages": 195434 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010PhRvB..81s5434J" } } }