{ "id": "1201.4434", "version": "v1", "published": "2012-01-21T05:48:02.000Z", "updated": "2012-01-21T05:48:02.000Z", "title": "Magnetoresistance measurements of Graphene at the Charge Neutrality Point", "authors": [ "Yue Zhao", "Paul Cadden-Zimansky", "Fereshte Ghahari", "Philip Kim" ], "categories": [ "cond-mat.mes-hall" ], "abstract": "We report on transport measurements of the insulating state that forms at the charge neutrality point of graphene in a magnetic field. Using both conventional two-terminal measurements, sensitive to bulk and edge conductance, and Corbino measurements, sensitive only to the bulk conductance, we observed a vanishing conductance with increasing magnetic fields. By examining the resistance changes of this insulating state with varying perpendicular and in-plane fields, we probe the spin-active components of the excitations in total fields of up to 45 Tesla. Our results indicate that \\nu=0 quantum Hall state in single layer graphene is not spin polarized.", "revisions": [ { "version": "v1", "updated": "2012-01-21T05:48:02.000Z" } ], "analyses": { "subjects": [ "73.63.-b", "73.22.-f", "73.43.-f" ], "keywords": [ "charge neutrality point", "magnetoresistance measurements", "magnetic field", "insulating state", "conventional two-terminal measurements" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevLett.108.106804", "journal": "Physical Review Letters", "year": 2012, "month": "Mar", "volume": 108, "number": 10, "pages": 106804 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012PhRvL.108j6804Z" } } }