Abstract
We demonstrate a possibility for exciton Bose-Einstein condensation in individual small-diameter ( nm) semiconducting carbon nanotubes. The effect occurs under the exciton-interband-plasmon coupling controlled by an external electrostatic field applied perpendicular to the nanotube axis. It requires fields 1 V/nm and temperatures below 100 K that are experimentally accessible. The effect offers a testing ground for fundamentals of condensed matter physics in one dimension and opens up perspectives to develop tunable coherent polarized light source with carbon nanotubes.
- Received 9 May 2013
- Revised 30 December 2013
DOI:https://doi.org/10.1103/PhysRevB.89.045414
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