{ "id": "cond-mat/0110362", "version": "v1", "published": "2001-10-18T07:08:17.000Z", "updated": "2001-10-18T07:08:17.000Z", "title": "Transport signatures of correlated disorder in a two-dimensional electron gas", "authors": [ "T. Heinzel", "R. D. Jaeggi", "E. Ribeiro", "M. v. Waldkirch", "K. Ensslin", "S. E. Ulloa", "G. Medeiros-Ribeiro", "P. M. Petroff" ], "comment": "5 pages, 2 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "We report electronic transport measurements on two-dimensional electron gases in a Ga[Al]As heterostructure with an embedded layer of InAs self-assembled quantum dots. At high InAs dot densities, pronounced Altshuler-Aronov-Spivak magnetoresistance oscillations are observed, which indicate short-range ordering of the potential landscape formed by the charged dots and the strain fields. The presence of these oscillations coincides with the observation of a metal-insulator transition, and a maximum in the electron mobility as a function of the electron density. Within a model based on correlated disorder, we establish a relation between these effects.", "revisions": [ { "version": "v1", "updated": "2001-10-18T07:08:17.000Z" } ], "analyses": { "keywords": [ "correlated disorder", "transport signatures", "high inas dot densities", "report electronic transport measurements", "two-dimensional electron gases" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2001cond.mat.10362H" } } }