{ "id": "0904.0690", "version": "v2", "published": "2009-04-04T06:31:38.000Z", "updated": "2009-04-20T21:27:13.000Z", "title": "Topological insulators in three dimensions from spontaneous symmetry breaking", "authors": [ "Yi Zhang", "Ying Ran", "Ashvin Vishwanath" ], "comment": "10 pages, 6 figures", "journal": "Phys. Rev. B 79, 245331 (2009)", "doi": "10.1103/PhysRevB.79.245331", "categories": [ "cond-mat.mes-hall" ], "abstract": "We study three dimensional systems where strong repulsion leads to an insulating state via spontaneously generated spin-orbit interactions. We discuss a microscopic model where the resulting state is topological. Such topological `Mott' insulators differ from their band insulator counterparts in that they possess an additional order parameter, a rotation matrix, that describes the spontaneous breaking of spin-rotation symmetry. We show that line defects of this order are associated with protected one dimensional modes in the {\\em strong} topological Mott insulator, which provides a bulk characterization of this phase.", "revisions": [ { "version": "v2", "updated": "2009-04-20T21:27:13.000Z" } ], "analyses": { "subjects": [ "73.43.-f", "71.30.+h", "71.10.Fd" ], "keywords": [ "spontaneous symmetry breaking", "topological insulators", "dimensions", "band insulator counterparts", "additional order parameter" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2009, "month": "Jun", "volume": 79, "number": 24, "pages": 245331 }, "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009PhRvB..79x5331Z" } } }