{ "id": "1302.0945", "version": "v2", "published": "2013-02-05T06:34:08.000Z", "updated": "2013-07-23T02:17:35.000Z", "title": "Large Current Modulation and Spin-Dependent Tunneling of Vertical Graphene/MoS$_{2}$ Heterostructures", "authors": [ "Nojoon Myoung", "Kyungchul Seo", "Seung Joo Lee", "Gukhyung Ihm" ], "comment": "19 pages, 5 figures", "journal": "ACS Nano 7, 7021 (2013)", "doi": "10.1021/nn402919d", "categories": [ "cond-mat.mes-hall" ], "abstract": "Vertical graphene heterostructures have been introduced as an alternative architecture for electronic devices by using quantum tunneling. Here, we present that the current on/off ratio of vertical graphene field-effect transistors is enhanced by using an armchair graphene nanoribbon as an electrode. Moreover, we report spin-dependent tunneling current of the graphene/MoS2 heterostructures. When an atomically thin MoS2 layer sandwiched between graphene electrodes becomes magnetic, Dirac fermions with different spins feel different height of the tunnel barrier, leading to spin-dependent tunneling. Our finding will develop the present graphene heterostructures for electronic devices by improving the device performance and by adding the possibility of spintronics based on graphene.", "revisions": [ { "version": "v2", "updated": "2013-07-23T02:17:35.000Z" } ], "analyses": { "keywords": [ "large current modulation", "spin-dependent tunneling", "vertical graphene/mos", "thin mos2 layer", "graphene heterostructures" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1302.0945M" } } }