{ "id": "cond-mat/9911173", "version": "v1", "published": "1999-11-11T18:49:48.000Z", "updated": "1999-11-11T18:49:48.000Z", "title": "Conductance Suppression due to Correlated Electron Transport in Coupled Double-dots", "authors": [ "Geza Toth", "Alexei O. Orlov", "Islamshah Amlani", "Craig S. Lent", "Gary H. Bernstein", "Gregory L. Snider" ], "comment": "19 pages [pre-print style], 8 figures, accepted for Phys. Rev. B", "journal": "Phys. Rev. B, vol. 60, number 24, 16906-16912 (15 Dec 1999-II)", "doi": "10.1103/PhysRevB.60.16906", "categories": [ "cond-mat.mes-hall", "cond-mat.str-el" ], "abstract": "The electrostatic interaction between two capacitively-coupled metal double-dots is studied at low temperatures. Experiments show that when the Coulomb blockade is lifted by applying appropriate gate biases to both double-dots, the conductance through each double-dot becomes significantly lower than when only one double-dot is conducting. A master equation is derived for the system and the results obtained agree well with the experimental data. The model suggests that the conductance lowering in each double-dot is caused by a single-electron tunneling in the other double-dot. Here, each double-dot responds to the instantaneous, rather than average, potentials on the other double-dot. This leads to correlated electron motion within the system, where the position of a single electron in one double-dot controls the tunneling rate through the other double-dot.", "revisions": [ { "version": "v1", "updated": "1999-11-11T18:49:48.000Z" } ], "analyses": { "keywords": [ "correlated electron transport", "conductance suppression", "coupled double-dots", "applying appropriate gate biases", "low temperatures" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable" } } }