Charge transport in carbon nanotubes based materials: a Kubo–Greenwood computational approach |
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Authors: | Hiroyuki Ishii Franois Triozon Nobuhiko Kobayashi Kenji Hirose Stephan Roche |
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Institution: | Hiroyuki Ishii, François Triozon, Nobuhiko Kobayashi, Kenji Hirose,Stephan Roche, |
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Abstract: | In this contribution, we present a numerical study of quantum transport in carbon nanotubes based materials. After a brief presentation of the computational approach used to investigate the transport coefficient (Kubo method), the scaling properties of quantum conductance in ballistic regime as well as in the diffusive regimes are illustrated. The impact of elastic (impurities) and dynamical disorders (phonon vibrations) are analyzed separately, with the extraction of main transport length scales (mean free path and localization length), as well as the temperature dependence of the nanotube resistance. The results are found in very good agreement with both analytical results and experimental data, demonstrating the predictability efficiency of our computational strategy. To cite this article: H. Ishii et al., C. R. Physique 10 (2009). |
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Keywords: | Charge transport Static and dynamical disorders Kubo– Greenwood conductance Localization Ballistic transportMots-clé s: Transport de charges Dé sordres statique et dynamique Conductivité de Kubo– Greenwood Localisation Transport balistique |
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