{ "id": "1710.04137", "version": "v1", "published": "2017-10-11T15:48:22.000Z", "updated": "2017-10-11T15:48:22.000Z", "title": "Gyrotropic Zener tunneling and nonlinear IV curves in the zero-energy Landau level of graphene in a strong magnetic field", "authors": [ "Antti Laitinen", "Manohar Kumar", "Pertti Hakonen", "Edouard Sonin" ], "comment": "7 pages, 4 figures", "categories": [ "cond-mat.mes-hall", "cond-mat.str-el" ], "abstract": "We have investigated tunneling current through a suspended graphene Corbino disk in high magnetic fields at the Dirac point, i.e. at filling factor $\\nu$ = 0. At the onset of the dielectric breakdown the current through the disk grows exponentially before ohmic behaviour, but in a manner distinct from thermal activation. We find that Zener tunneling between Landau sublevels dominates, facilitated by tilting of the source-drain bias potential. According to our analytic modelling, the Zener tunneling is strongly affected by the gyrotropic force (Lorentz force) due to the high magnetic field", "revisions": [ { "version": "v1", "updated": "2017-10-11T15:48:22.000Z" } ], "analyses": { "keywords": [ "strong magnetic field", "zero-energy landau level", "gyrotropic zener tunneling", "high magnetic field", "suspended graphene corbino disk" ], "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable" } } }