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Published on: February 2, 2012
Spectral correlation in incommensurate multiwalled carbon nanotubes
K-H Ahn1, Yong-Hyun Kim, J Wiersig
1School of Physics, Seoul National University, Seoul 151-747, Korea.
Abstract:
We investigate the energy spectra of clean incommensurate double-walled carbon nanotubes, and find that the overall spectral properties are described by the critical statistics similar to that known in the Anderson metal-insulator transition. In the energy spectra, there exist three different regimes characterized by Wigner-Dyson, Poisson, and semi-Poisson distributions. This feature implies that the electron transport in incommensurate multiwalled nanotubes can be either diffusive, ballistic, or intermediate between them, depending on the position of the Fermi energy.
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