{ "id": "2006.16707", "version": "v1", "published": "2020-06-30T12:00:13.000Z", "updated": "2020-06-30T12:00:13.000Z", "title": "Goos-Hänchen Shifts in Gapped Graphene subject to External Fields", "authors": [ "Miloud Mekkaoui", "Ahmed Jellal", "Hocine Bahlouli" ], "comment": "16 pages, 7 figures", "categories": [ "cond-mat.mes-hall", "quant-ph" ], "abstract": "We study Dirac fermions in gapped graphene that are subjected to a magnetic field and a potential barrier harmonically oscillating in time. The tunneling modes inside the gap and the associated Goos-H\\\"anchen (GH) shifts are analytically investigated. We show that the GH shifts in transmission for the central band and the first two sidebands change sign at the Dirac points $\\epsilon+l\\hbar\\tilde{\\omega}$ $(l=0,\\pm 1)$. We also find that the GH shifts can be either negative or positive and becomes zero at transmission resonances.", "revisions": [ { "version": "v1", "updated": "2020-06-30T12:00:13.000Z" } ], "analyses": { "keywords": [ "gapped graphene subject", "external fields", "goos-hänchen shifts", "gh shifts", "study dirac fermions" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }