Spectral properties of incommensurate double-walled carbon nanotubes

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Incommensurate double-walled carbon nanotubes (iDWCNTs) are one of the simplest nanostructures where we can study the role of incommensurability in quantum transport. We investigate the dynamics of electrons via spectral statistics for different interwall interactions in iDWCNTs. The spectral properties of iDWCNTs are described by Poisson, Wigner-Dyson, and semi-Poisson distributions, depending on the energy regime, implying that the transport nature might be ballistic, diffusive, and intermediate between them. The spectral distribution is found to change from Poisson to Wigner-Dyson as the interwall interaction strength increases. We also analyze the characteristics of wave functions for the three different energy regimes, in conjunction with the transport behavior. (C) 2003 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2004-04
Language
English
Article Type
Article; Proceedings Paper
Keywords

TUBULES

Citation

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, v.22, pp.666 - 669

ISSN
1386-9477
URI
http://hdl.handle.net/10203/82162
Appears in Collection
NT-Journal Papers(저널논문)PH-Journal Papers(저널논문)
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