{ "id": "0801.1861", "version": "v2", "published": "2008-01-11T22:18:37.000Z", "updated": "2008-02-23T23:32:46.000Z", "title": "Cyclotron resonance in bilayer graphene", "authors": [ "E. A. Henriksen", "Z. Jiang", "L. -C. Tung", "M. E. Schwartz", "M. Takita", "Y. -J. Wang", "P. Kim", "H. L. Stormer" ], "comment": "to appear in Phys. Rev. Lett. Updated version with two added references and minor text editing", "journal": "Phys. Rev. Lett. 100, 087403 (2008)", "doi": "10.1103/PhysRevLett.100.087403", "categories": [ "cond-mat.mes-hall" ], "abstract": "We present the first measurements of cyclotron resonance of electrons and holes in bilayer graphene. In magnetic fields up to B = 18 T we observe four distinct intraband transitions in both the conduction and valence bands. The transition energies are roughly linear in B between the lowest Landau levels, whereas they follow \\sqrt{B} for the higher transitions. This highly unusual behavior represents a change from a parabolic to a linear energy dispersion. The density of states derived from our data generally agrees with the existing lowest order tight binding calculation for bilayer graphene. However in comparing data to theory, a single set of fitting parameters fails to describe the experimental results.", "revisions": [ { "version": "v2", "updated": "2008-02-23T23:32:46.000Z" } ], "analyses": { "subjects": [ "78.66.Tr", "71.70.Di", "76.40.+b", "78.30.Na" ], "keywords": [ "bilayer graphene", "cyclotron resonance", "lowest order tight binding calculation", "lowest landau levels", "highly unusual behavior represents" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2008, "month": "Feb", "volume": 100, "number": 8, "pages": "087403" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008PhRvL.100h7403H" } } }