Conduction mechanisms and magnetotransport in multiwalled carbon nanotubes
We report on a numerical study of quantum diffusion over μ m lengths in defect-free
multiwalled nanotubes. The intershell coupling allows the wave packet spreading over
several shells, and when their periodicities along the nanotube axis are incommensurate,
electronic propagation is shown to follow a nonballistic law if a sufficient number of shells
are involved in conduction. This results in magnetotransport properties which are
exceptional for a disorder free system.
multiwalled nanotubes. The intershell coupling allows the wave packet spreading over
several shells, and when their periodicities along the nanotube axis are incommensurate,
electronic propagation is shown to follow a nonballistic law if a sufficient number of shells
are involved in conduction. This results in magnetotransport properties which are
exceptional for a disorder free system.
Abstract
We report on a numerical study of quantum diffusion over μ m lengths in defect-free multiwalled nanotubes. The intershell coupling allows the wave packet spreading over several shells, and when their periodicities along the nanotube axis are incommensurate, electronic propagation is shown to follow a nonballistic law if a sufficient number of shells are involved in conduction. This results in magnetotransport properties which are exceptional for a disorder free system.
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