Wave-Packet Dynamics Simulation on Electronic Transport in Carbon Nanotubes with Randomly Distributed Impurities

• Yukihiro Takada

• Takahiro Yamamoto

Abstract

We investigate coherent electronic transport in semiconducting single-walled carbon nanotubes with randomly distributed impurities utilizing the wave-packet dynamics method combined with the mode-space decomposition method, focusing particularly on the case of small hole doping. From the behavior of the time-dependent diffusion coefficient and the diffusion length, we verify that the system exhibits Anderson's localization due to quasi-one-dimensionality of nanotubes. Moreover, we reveal the dependence of impurity-potential strength on the localization length, and consequently we demonstrate that the localization can occur even at room temperature, which is consistent with the recent experimental results.

Journal

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 52 (6S), 06GD07-, 2013-06-01

  IOP Publishing

Keywords

• General Physics and Astronomy
• General Engineering

Details

• CRID: 1360003449887047680
• NII Article ID: 210000142345
• DOI: 10.7567/jjap.52.06gd07
• ISSN: 13474065
• ISSN: 00214922
• ISSN: http://id.crossref.org/issn/13474065
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.52.06GD07
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.52.06GD07/pdf
• Data Source:
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  • CiNii Articles
  • KAKEN