{ "id": "1401.5094", "version": "v1", "published": "2014-01-20T21:26:00.000Z", "updated": "2014-01-20T21:26:00.000Z", "title": "Disorder induced magnetoresistance in a two dimensional electron system", "authors": [ "Jinglei Ping", "Indra Yudhistira", "Navneeth Ramakrishnan", "Sungjae Cho", "Shaffique Adam", "Michael S. Fuhrer" ], "journal": "Phys. Rev. Lett. 113, 047206 (2014)", "doi": "10.1103/PhysRevLett.113.047206", "categories": [ "cond-mat.mes-hall" ], "abstract": "We predict and demonstrate that a disorder induced carrier density inhomogeneity causes magnetoresistance (MR) in a two-dimensional electron system. Our experiments on graphene show a quadratic MR persisting far from the charge neutrality point. Effective medium calculations show that for charged impurity disorder, the low-field MR is a universal function of the ratio of carrier density to fluctuations in carrier density, a power-law when this ratio is large, in excellent agreement with experiment. The MR is generic and should occur in other materials with large carrier density inhomogeneity.", "revisions": [ { "version": "v1", "updated": "2014-01-20T21:26:00.000Z" } ], "analyses": { "subjects": [ "75.47.-m" ], "keywords": [ "dimensional electron system", "disorder induced magnetoresistance", "large carrier density inhomogeneity", "disorder induced carrier density inhomogeneity" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2014, "month": "Jul", "volume": 113, "number": 4, "pages": "047206" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014PhRvL.113d7206P" } } }