{ "id": "1301.3052", "version": "v1", "published": "2013-01-14T16:55:08.000Z", "updated": "2013-01-14T16:55:08.000Z", "title": "Electronic Properties of Twisted Trilayer Graphene", "authors": [ "E. Suárez Morell", "M. Pacheco", "L. Chico", "L. Brey" ], "comment": "8 pages, 6 figures", "journal": "Phys.Rev.B 87, 125414, (2013)", "doi": "10.1103/PhysRevB.87.125414", "categories": [ "cond-mat.mes-hall" ], "abstract": "We study the electronic properties of a twisted trilayer graphene, where two of the layers have Bernal stacking and the third one has a relative rotation with respect to the AB-stacked layers. Near the Dirac point, the AB-twisted trilayer graphene spectrum shows two parabolic Bernal-like bands and a twisted-like Dirac cone. For small twist angles, the parabolic bands present a gap that increases for decreasing rotation angle. There is also a shift in the twisted-like Dirac cone with a similar angle dependence. We correlate the gap in the trilayer with the shift of the Dirac cone in an isolated twisted bilayer, which is due to the loss of electron-hole symmetry caused by sublattice mixing in the rotated geometry. Using a tight-binding and a continuum model, we derive an effective Hamiltonian which accounts for the relevant low-energy properties of this system.", "revisions": [ { "version": "v1", "updated": "2013-01-14T16:55:08.000Z" } ], "analyses": { "subjects": [ "73.22.Pr" ], "keywords": [ "electronic properties", "twisted-like dirac cone", "similar angle dependence", "small twist angles", "relevant low-energy properties" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2013, "month": "Mar", "volume": 87, "number": 12, "pages": 125414 }, "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013PhRvB..87l5414S" } } }