Nanotube-Metal Junctions: 2- and 3- Terminal Electrical Transport

Simple item page
dc.creatorKe, San-Huang
dc.creatorYang, Weitao
dc.creatorBaranger, Harold U.
dc.date2005-11-22
dc.date2006-09-14
dc.date.accessioned2026-07-07T06:49:22Z
dc.date.available2026-07-07T06:49:22Z
dc.descriptionWe address the quality of electrical contact between carbon nanotubes and metallic electrodes by performing first-principles calculations for the electron transmission through ideal 2- and 3-terminal junctions, thus revealing the physical limit of tube-metal conduction. The structural model constructed involves surrounding the tube by the metal atoms of the electrode as in most experiments; we consider metallic (5,5) and n-doped semiconducting (10,0) tubes surrounded by Au or Pd. In the case of metallic tubes, the contact conductance is shown to approach the ideal 4e^2/h in the limit of large contact area. For three-terminals, the division of flux among the different transmission channels depends strongly on the metal material. A Pd electrode has nearly perfect tube-electrode transmission and therefore turns off the straight transport along the tube. Our results are in good agreement with some recent experimental reports and clarify a fundamental discrepancy between theory and experiment.
dc.description5 pages, 5 figures, published version: some modified figures and clarifications in the text
dc.identifierhttps://arxiv.org/abs/cond-mat/0511550
dc.identifierhttp://arxiv.org/abs/cond-mat/0511550
dc.identifierJ. Chem. Phys. 124, 181102 (2006)
dc.identifierdoi:10.1063/1.2200356
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/104313
dc.subjectMaterials Science
dc.titleNanotube-Metal Junctions: 2- and 3- Terminal Electrical Transport
dc.typetext

Files

Collections

arXiv