{ "id": "0804.3219", "version": "v1", "published": "2008-04-20T21:55:22.000Z", "updated": "2008-04-20T21:55:22.000Z", "title": "Charge pumping in carbon nanotube quantum dots", "authors": [ "M. R. Buitelaar", "V. Kashcheyevs", "P. J. Leek", "V. I. Talyanskii", "C. G. Smith", "D. Anderson", "G. A. C. Jones", "J. Wei", "D. H. Cobden" ], "journal": "Phys. Rev. Lett. 101, 126803 (2008)", "doi": "10.1103/PhysRevLett.101.126803", "categories": [ "cond-mat.mes-hall" ], "abstract": "We investigate charge pumping in carbon nanotube quantum dots driven by the electric field of a surface acoustic wave. We find that at small driving amplitudes, the pumped current reverses polarity as the conductance is tuned through a Coulomb blockade peak using a gate electrode. We study the behavior as a function of wave amplitude, frequency and direction and develop a model in which our results can be understood as resulting from adiabatic charge redistribution between the leads and quantum dots on the nanotube.", "revisions": [ { "version": "v1", "updated": "2008-04-20T21:55:22.000Z" } ], "analyses": { "subjects": [ "85.35.Kt", "73.23.Hk", "73.63.Fg", "73.63.Kv" ], "keywords": [ "charge pumping", "carbon nanotube quantum dots driven", "adiabatic charge redistribution", "coulomb blockade peak", "pumped current reverses polarity" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2008, "month": "Sep", "volume": 101, "number": 12, "pages": 126803 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008PhRvL.101l6803B" } } }