Full symmetry, optical activity, and potentials of single-wall and multiwall nanotubes
TLDR
In this article, the full symmetry groups for all single-wall and multi-wall carbon nanotubes are found, and the optical activity is studied within this framework, and a detailed classification of the possible nanotube-based optical devices is given.Abstract:
The full symmetry groups for all single-wall and multiwall carbon nanotubes are found. As for the single-wall tubes, the symmetries form non-Abelian nonsymorphic line groups, enlarging the groups reported in the literature. In the multiwall case, any type of line and axial point groups can be obtained, depending on single-wall constituents and their relative position. The isogonal symmetry is related to the macroscopic tensor properties of the nanotubes. The optical activity is studied within this framework, and a detailed classification of the possible nanotube-based optical devices is given. At the microscopic level, full symmetry is used to find general forms of the characteristic functions of the nanotubes. In particular, the stability of the double-wall configurations and the possibility of chiral currents are discussed. Several other consequences are discussed: quantum numbers and related selection rules, phonon spectra, etc. In particular, the bands of the zigzag and the armchair tubes are generally expected to be fourfold degenerate.read more
Citations
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Electronic and transport properties of nanotubes
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TL;DR: In this article, the authors present a character and correlation table of the Raman Spectra of single-walled carbon nanotubes with respect to the properties of room temperature, room-temperature conductance, and vibrational properties.
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Exciton binding energies in carbon nanotubes from two-photon photoluminescence
Janina Maultzsch,R. Pomraenke,Stephanie Reich,E. Chang,Deborah Prezzi,Alice Ruini,Elisa Molinari,Michael S. Strano,Christian Thomsen,Christoph Lienau +9 more
TL;DR: In this paper, the binding energies of single-walled carbon nanotubes with diameters between 6.8 and 9.4 were determined by ab initio calculations, based on photoluminescence excitation experiments.
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Registry-dependent interlayer potential for graphitic systems
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Semiclassical transport and phonon scattering of electrons in semiconducting carbon nanotubes
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TL;DR: In this paper, the current flow, considering a semiclassical electron--electric-field interaction and electron scattering by acoustic phonons, is studied in semiconducting zig-zag carbon nanotubes.
References
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TL;DR: In this article, the propagation of electromagnetic waves and X-ray diffraction of X rays in crystals are discussed. But they do not consider the effects of superconductivity on superconducting conductors.
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TL;DR: The free-electron picture and the Fourier series have been studied in the context of space groups as mentioned in this paper, where the reciprocal lattice has been used to represent space groups.
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