High Bias Voltage Transport in Metallic Single-walled Carbon Nanotubes under Axial Stress

Details High Bias Voltage Transport in Metallic Single-walled Carbon Nanotubes under Axial Stress High Bias Voltage Transport in Metallic Single-walled Carbon Nanotubes under Axial Stress

2010-08-04

arxiv.org/abs/1008.0814v2

Phys. Rev. B 83, 245411 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 3 figures, extended paper version

Scientific paper

We calculate the current-voltage characteristic of a homogeneously strained metallic carbon nanotube adsorbed on a substrate. The strain generates a gap in the energy spectrum leading to a reduction of the current. In the elastic regime, the current-voltage characteristic shows a large negative differential conductance at bias voltages of around $ \gtrsim 0.17 $V. We discuss the implications for the current in the superelongated regime.

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