Negative Differential Conductivity in Carbon Nanotubes
- 10 January 2000
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 84 (2) , 362-365
- https://doi.org/10.1103/physrevlett.84.362
Abstract
A theoretical model and computations of the I-V characteristics of long carbon nanotubes in a strong axial dc field at room temperature is presented. Negative differential conductivity is predicted. It is shown that |dI/dV| for metal carbon nanotubes in the region of the negative differential conductivity significantly exceeds corresponding values for semiconducting ones. The predicted effect would enable the design of wave-generating nanotube-based diodes for submillimeter and infrared ranges.Keywords
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