{ "id": "2006.11797", "version": "v1", "published": "2020-06-21T13:26:56.000Z", "updated": "2020-06-21T13:26:56.000Z", "title": "Strong localization in a suspended monolayer graphene by intervalley scattering", "authors": [ "Cenk Yanik", "Vahid Sazgari", "Abdulkadir Canatar", "Yaser Vaheb", "Ismet I. Kaya" ], "comment": "4 pages, 4 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "A gate induced insulating behavior at zero magnetic field is observed in a high mobility suspended monolayer graphene near the charge neutrality point. The graphene device initially cleaned by a current annealing technique was undergone a thermo-pressure cycle to allow short range impurities to be adsorbed directly on the ultra clean graphene surface. The adsorption process generated a strong temperature and electric field dependent behavior on the conductance of the graphene device. The conductance around the neutrality point is observed to be reduced from around $e^2/h$ at 30 K to $\\sim0.01~e^2/h$ at 20 mK. A direct transition from insulator to quantum Hall conductor within $\\approx0.4~T$ accompanied by broken-symmetry-induced $\\nu=0,\\pm1$ plateaux confirms the presence of intervalley scatterers.", "revisions": [ { "version": "v1", "updated": "2020-06-21T13:26:56.000Z" } ], "analyses": { "keywords": [ "strong localization", "intervalley scattering", "high mobility suspended monolayer graphene", "graphene device", "ultra clean graphene surface" ], "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }