Spectral correlation in incommensurate multiwalled carbon nanotubes.
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.
Ahn
K-H
KH
School of Physics, Seoul National University, Seoul 151-747, Korea.
Kim
Yong-Hyun
YH
Wiersig
J
J
Chang
K J
KJ