Phys. Rev. Lett. 90, 026601 (2003) [4 pages]Spectral Correlation in Incommensurate Multiwalled Carbon Nanotubes |
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K.-H. Ahn1, Yong-Hyun Kim2, J. Wiersig3, and K. J. Chang2,4
1School of Physics, Seoul National University, Seoul 151-747, Korea
2Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
3Max Planck Institute for Physics of Complex Systems, Nöthnitzer Strasse 38, Dresden 01187, Germany
4School of Physics, Korea Institute for Advanced Study, Seoul 130-012, Korea
Received 28 August 2002; published 17 January 2003
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.
©2003 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v90/e026601
DOI: 10.1103/PhysRevLett.90.026601
PACS: 72.80.Rj, 03.65.–w, 72.15.–v, 73.23.–b
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