{ "id": "1206.4733", "version": "v3", "published": "2012-06-20T22:29:01.000Z", "updated": "2012-09-03T17:58:51.000Z", "title": "Spin-polarized tunneling current through a thin film of topological insulator in a parallel magnetic field", "authors": [ "Sergey S. Pershoguba", "Victor M. Yakovenko" ], "comment": "5 pages, 3 figures; Section V edited and extended", "journal": "Phys. Rev. B 86, 165404 (2012)", "doi": "10.1103/PhysRevB.86.165404", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "We calculate the tunneling conductance \\sigma between the surface states on the opposite sides of the ultra-thin film of a topological insulator in a parallel magnetic field B_y. The parallel magnetic produces a relative shift of the in-plane momenta of the two surfaces states. An overlap between the shifted Fermi circles and their spin structure define an unusual dependence of the tunneling conductance \\sigma(B_y) on the magnetic field. Because the spin of the electronic surface states in topological insulators is locked with momentum, the spin-polarization of the tunneling current can be controlled by magnetic field B_y.", "revisions": [ { "version": "v3", "updated": "2012-09-03T17:58:51.000Z" } ], "analyses": { "subjects": [ "73.50.Jt", "03.65.Vf" ], "keywords": [ "parallel magnetic field", "topological insulator", "spin-polarized tunneling current", "thin film", "parallel magnetic produces" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2012, "month": "Oct", "volume": 86, "number": 16, "pages": 165404 }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012PhRvB..86p5404P" } } }