{ "id": "1211.5026", "version": "v2", "published": "2012-11-21T13:40:33.000Z", "updated": "2013-04-17T09:04:57.000Z", "title": "Criticality of the metal-topological insulator transition driven by disorder", "authors": [ "Ai Yamakage", "Kentaro Nomura", "Ken-Ichiro Imura", "Yoshio Kuramoto" ], "comment": "13 pages, 11 figures. Critical exponent of metal-topological Anderson insulator transition estimated", "journal": "Phys. Rev. B 87, 205141 (2013)", "doi": "10.1103/PhysRevB.87.205141", "categories": [ "cond-mat.mes-hall", "cond-mat.dis-nn" ], "abstract": "Employing scaling analysis of the localization length, we deduce the critical exponent of the metal-topological insulator (TI) transitions induced by disorder. The obtained exponent nu~2.7 shows no conspicuous deviation from the value established for metal-ordinary insulator transitions in systems of the symplectic class. We investigate the topological phase diagram upon carrier doping to reveal the nature of the so-called topological Anderson insulator (TAI) region. The critical exponent of the metal-TAI transition is also first estimated, shown to be undistinguishable from the above value within the numerical error. By symmetry considerations we determine the explicit form of Rashba spin-orbit coupling in systems of C4v point group symmetry.", "revisions": [ { "version": "v2", "updated": "2013-04-17T09:04:57.000Z" } ], "analyses": { "subjects": [ "72.15.Rn", "73.20.Fz", "71.70.Ej", "73.43.-f" ], "keywords": [ "metal-topological insulator transition driven", "criticality", "c4v point group symmetry", "critical exponent", "metal-ordinary insulator transitions" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2013, "month": "May", "volume": 87, "number": 20, "pages": 205141 }, "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013PhRvB..87t5141Y" } } }