{ "id": "1209.4415", "version": "v2", "published": "2012-09-20T04:01:51.000Z", "updated": "2012-11-27T17:15:33.000Z", "title": "Rashba Spin Orbit Interaction and Birefringent Electron Optics in Graphene", "authors": [ "Mahmoud M. Asmar", "Sergio E. Ulloa" ], "journal": "Phys. Rev. B 87, 075420 (2013)", "doi": "10.1103/PhysRevB.87.075420", "categories": [ "cond-mat.mes-hall" ], "abstract": "Electron optics exploits the analogies between rays in geometrical optics and electron trajectories, leading to interesting insights and potential applications. Graphene, with its two-dimensionality and photon-like behavior of its charge carriers, is the perfect candidate for the exploitation of electron optics. We show that a circular gate-controlled region in the presence of Rashba spin-orbit interaction in graphene may indeed behave as a Veselago electronic lens but with two different indices of refraction. We demonstrate that this birefringence results in complex caustics patterns for a circular gate, selective focusing of different spins, and the possible direct measurement of the Rashba coupling strength in scanning probe experiments.", "revisions": [ { "version": "v2", "updated": "2012-11-27T17:15:33.000Z" } ], "analyses": { "subjects": [ "71.70.Ej", "42.25.Lc", "72.10.Fk", "75.76.+j" ], "keywords": [ "rashba spin orbit interaction", "birefringent electron optics", "electron optics exploits", "complex caustics patterns", "veselago electronic lens" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2013, "month": "Feb", "volume": 87, "number": 7, "pages": "075420" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013PhRvB..87g5420A" } } }