{ "id": "1307.0941", "version": "v2", "published": "2013-07-03T08:58:45.000Z", "updated": "2013-11-01T12:15:03.000Z", "title": "Generation of a fully valley-polarized current in bulk graphene", "authors": [ "Yu Song", "Feng Zhai", "Yong Guo" ], "comment": "Derivation details of the transfer matrix for a finite superlattice (Eq. (4)) are added", "journal": "Appl. Phys. Lett. 103, 183111 (2013)", "doi": "10.1063/1.4827995", "categories": [ "cond-mat.mes-hall" ], "abstract": "The generation of a fully valley-polarized current (FVPC) in bulk graphene is a fundamental goal in valleytronics. To this end, we investigate valley-dependent transport through a strained graphene modulated by a finite magnetic superlattice. It is found that this device allows a coexistence of insulating transmission gap of one valley and metallic resonant band of the other. Accordingly, a substantial bulk FVPC appears in a wide range of edge orientation and temperature, which can be effectively tuned by structural parameters. A valley-resolved Hall configuration is designed to measure the valley polarization degree of the filtered current.", "revisions": [ { "version": "v2", "updated": "2013-11-01T12:15:03.000Z" } ], "analyses": { "subjects": [ "85.65.+h" ], "keywords": [ "fully valley-polarized current", "bulk graphene", "generation", "substantial bulk fvpc appears", "valley polarization degree" ], "tags": [ "journal article" ], "publication": { "journal": "Applied Physics Letters", "year": 2013, "month": "Oct", "volume": 103, "number": 18, "pages": 183111 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013ApPhL.103r3111S" } } }