We demonstrate a possibility for exciton Bose-Einstein condensation in individual small-diameter (∼1--2 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.
Physical Review B
- Pub Date:
- January 2014
- Electronic structure of nanoscale materials: clusters nanoparticles nanotubes and nanocrystals;
- Fullerenes and related materials;
- Condensed Matter - Mesoscale and Nanoscale Physics
- 8 pages, 4 figures, 2 appendices