2004/11/30 by M Gheorghe, M. Gheorghe, R Gutiérrez +8
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Carbon Nanotubes in Composites #Molecular Junctions and Nanostructures #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1209/epl/i2005-10091-5
published as Europhysics Letters 71, 438 (2005) · 7 pages, 4 figures
arxiv created 2005/05/24 · openalex publication_date 2005/07/05 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We study the influence of structural lattice fluctuations on the elastic electron transport in single-wall carbon nanotubes within a density-functional-based scheme. In the linear-response regime, the linear conductance is calculated via configurational averages over the distorted lattice. Results obtained from a frozen-phonon approach as well as from molecular-dynamics simulations are compared. We further suggest that the effect of structural fluctuations can be qualitatively captured by the Anderson model with bond disorder. The influence of individual vibrational modes on the electronic transport is discussed as well as the role of zero-point fluctuations.