{ "id": "1312.1194", "version": "v2", "published": "2013-12-04T15:00:40.000Z", "updated": "2014-03-17T17:04:57.000Z", "title": "Scanning-gate-induced effects in nonlinear transport through nanostructures", "authors": [ "Cosimo Gorini", "Dietmar Weinmann", "Rodolfo A. Jalabert" ], "comment": "6 pages, 4 figures, revised and extended final version", "journal": "Phys. Rev. B 89, 115414 (2014)", "doi": "10.1103/PhysRevB.89.115414", "categories": [ "cond-mat.mes-hall" ], "abstract": "We investigate the effect of a scanning gate tip in the nonlinear quantum transport properties of nanostructures. Generally, we predict that the symmetry of the current-voltage characteristic in reflection-symmetric samples is broken by a tip-induced rectifying conductance correction. Moreover, in the case of a quantum point contact (QPC), the tip-induced rectification term becomes dominant as compared to the change of the linear conductance at large tip-QPC distances. Calculations for a weak tip probing a QPC modeled by an abrupt constriction show that these effects are experimentally observable.", "revisions": [ { "version": "v2", "updated": "2014-03-17T17:04:57.000Z" } ], "analyses": { "subjects": [ "72.10.-d", "07.79.-v", "72.20.Ht", "73.23.-b" ], "keywords": [ "nonlinear transport", "scanning-gate-induced effects", "nanostructures", "nonlinear quantum transport properties", "large tip-qpc distances" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2014, "month": "Mar", "volume": 89, "number": 11, "pages": 115414 }, "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014PhRvB..89k5414G" } } }