Abstract
We investigate the electron-phonon interaction in single-wall carbon nanotube samples at room temperature using femtosecond time-resolved photoemission. By probing electrons from the vicinity of the Fermi level we are able to study the interaction in the metallic nanotube species only. The observed electron dynamics can be used to calculate scattering matrix elements for two likely scattering scenarios: forward scattering from twistons and backscattering by longitudinal acoustic phonons. The corresponding matrix elements reveal an intrinsically weak interaction approximately smaller than predicted by tight-binding calculations.
- Received 30 November 1999
DOI:https://doi.org/10.1103/PhysRevLett.84.5002
©2000 American Physical Society