{ "id": "0709.3847", "version": "v2", "published": "2007-09-24T21:49:29.000Z", "updated": "2008-08-06T09:09:22.000Z", "title": "External Control of a Metal-Insulator Transition in GaMnAs Wires", "authors": [ "Anh Kiet Nguyen", "Arne Brataas" ], "comment": "Major revised final version", "journal": "Phys. Rev. Lett. 101, 016801 (2008)", "doi": "10.1103/PhysRevLett.101.016801", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "Quantum transport in disordered ferromagnetic (III,Mn)V semiconductors is studied theoretically. Mesoscopic wires exhibit an Anderson disorder-induced metal-insulator transition that can be controlled by a weak external magnetic field. This metal-insulator transition should also occur in other materials with large anisotropic magneto resistance effects. The transition can be useful for studies of zero-temperature quantum critical phase transitions and fundamental material properties.", "revisions": [ { "version": "v2", "updated": "2008-08-06T09:09:22.000Z" } ], "analyses": { "subjects": [ "71.30.+h", "73.20.Fz", "73.43.Nq" ], "keywords": [ "metal-insulator transition", "external control", "gamnas wires", "large anisotropic magneto resistance effects", "weak external magnetic field" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2008, "month": "Jul", "volume": 101, "number": 1, "pages": "016801" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008PhRvL.101a6801N" } } }