Strong Enhancement of High Voltage Electronic Transport in Chiral Electrical Nanotube Superlattices

Details Strong Enhancement of High Voltage Electronic Transport in Chiral Electrical Nanotube Superlattices Strong Enhancement of High Voltage Electronic Transport in Chiral Electrical Nanotube Superlattices

2011-06-03

arxiv.org/abs/1106.0623v2

Phys. Rev. B 84, 121404(R) (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 3 figures, published version

Scientific paper

We consider metallic carbon nanotubes with an overlying unidirectional electrical chiral (wavevector out of the radial direction, where the axial direction is included) superlattice potential. We show that for superlattices with a wavevector close to the axial direction, the electron velocity assumes the same value as for nanotubes without superlattice. Due to an increased number of phonons with different momenta but lower electron-phonon scattering probabilities, we obtain a large enhancement of the high-voltage conductance and current sustainability in comparison with the nanotube without superlattice.

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