{ "id": "cond-mat/0504004", "version": "v1", "published": "2005-03-31T21:44:42.000Z", "updated": "2005-03-31T21:44:42.000Z", "title": "Ballistic transport and electrostatics in metallic carbon nanotubes", "authors": [ "A. Svizhenko", "M. P. Anantram", "T. R. Govindan" ], "doi": "10.1109/TNANO.2005.851409", "categories": [ "cond-mat.mes-hall" ], "abstract": "We calculate the current and electrostatic potential drop in metallic carbon nanotube wires self-consistently, by solving the Green's function and electrostatics equations in the ballistic case. About one tenth of the applied voltage drops across the bulk of a nanowire, independent of the lengths considered here. The remaining nine tenths of the bias drops near the contacts, thereby creating a non linear potential drop. The scaling of the electric field at the center of the nanotube with length (L) is faster than 1/L (roughly $1/L^{1.25-1.75}$). At room temperature, the low bias conductance of large diameter nanotubes is larger than $4e^2/h$ due to occupation of non crossing subbands. The physics of conductance evolution with bias due to the transmission Zener tunneling in non crossing subbands is discussed.", "revisions": [ { "version": "v1", "updated": "2005-03-31T21:44:42.000Z" } ], "analyses": { "keywords": [ "ballistic transport", "non crossing subbands", "metallic carbon nanotube wires", "non linear potential drop" ], "tags": [ "journal article" ], "publication": { "journal": "IEEE Transactions on Nanotechnology", "year": 2005, "month": "Sep", "volume": 4, "number": 5, "pages": 557 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005ITNan...4..557S" } } }