{ "id": "1210.4642", "version": "v2", "published": "2012-10-17T06:45:29.000Z", "updated": "2012-12-17T14:03:26.000Z", "title": "Topological transition of Dirac points in a microwave experiment", "authors": [ "Matthieu Bellec", "Ulrich Kuhl", "Gilles Montambaux", "Fabrice Mortessagne" ], "comment": "Physical Review Letters (2013) XXX", "doi": "10.1103/PhysRevLett.110.033902", "categories": [ "cond-mat.mes-hall" ], "abstract": "By means of a microwave tight-binding analogue experiment of a graphene-like lattice, we observe a topological transition between a phase with a point-like band gap characteristic of massless Dirac fermions and a gapped phase. By applying a controlled anisotropy on the structure, we investigate the transition directly via density of states measurements. The wave function associated with each eigenvalue is mapped and reveals new states at the Dirac point, localized on the armchair edges. We find that with increasing anisotropy, these new states are more and more localized at the edges.", "revisions": [ { "version": "v2", "updated": "2012-12-17T14:03:26.000Z" } ], "analyses": { "subjects": [ "42.70.Qs", "03.65.Nk", "71.20.-b", "73.22.Pr" ], "keywords": [ "dirac point", "topological transition", "microwave experiment", "point-like band gap characteristic", "microwave tight-binding analogue experiment" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2013, "month": "Jan", "volume": 110, "number": 3, "pages": "033902" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013PhRvL.110c3902B" } } }