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Aharonov-Bohm spectral features and coherence lengths in carbon nanotubes

S. Roche·G. Dresselhaus·M. S. Dresselhaus·R. Saito
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Abstract

The electronic properties of carbon nanotubes are investigated in the presence of disorder and a magnetic field parallel or perpendicular to the nanotube axis. In the parallel field geometry, the $ϕ_{0}(=hc/e)$-periodic metal-insulator transition (MIT) induced in metallic or semiconducting nanotubes is shown to be related to a chirality-dependent shifting of the energy of the van Hove singularities (VHSs). The effect of disorder on this magnetic field-related mechanism is considered with a discussion of mean free paths, localization lengths and magnetic dephasing rate in the context of recent experiments.

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S. Roche, G. Dresselhaus, M. S. Dresselhaus, R. Saito. 2000-05-03. Aharonov-Bohm spectral features and coherence lengths in carbon nanotubes. https://doi.org/10.1103/physrevb.62.16092

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