{ "id": "cond-mat/0207266", "version": "v1", "published": "2002-07-10T17:46:24.000Z", "updated": "2002-07-10T17:46:24.000Z", "title": "Shot noise in self-assembled InAs quantum dots", "authors": [ "A. Nauen", "I. Hapke-Wurst", "F. Hohls", "U. Zeitler", "R. J. Haug", "K. Pierz" ], "doi": "10.1103/PhysRevB.66.161303", "categories": [ "cond-mat.mes-hall" ], "abstract": "We investigate the noise properties of a GaAs-AlAs-GaAs tunneling structure with embedded self-assembled InAs quantum dots in the single-electron tunneling regime. We analyze the dependence of the relative noise amplitude of the shot noise on bias voltage. We observe a non-monotonic behaviour of the Fano-factor $\\alpha$ with an average value of $\\alpha \\approx 0.8$ consistent with the asymmetry of the tunneling barriers. Reproducible fluctuations observed in $\\alpha$ can be attributed to the successive participation of more and more InAs quantum dots in the tunneling current.", "revisions": [ { "version": "v1", "updated": "2002-07-10T17:46:24.000Z" } ], "analyses": { "keywords": [ "shot noise", "embedded self-assembled inas quantum dots", "average value", "single-electron tunneling regime", "gaas-alas-gaas tunneling structure" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }