Electron-Phonon Interaction in Single-Wall Carbon Nanotubes: A Time-Domain Study

Tobias Hertel and Gunnar Moos
Phys. Rev. Lett. 84, 5002 – Published 22 May 2000
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Abstract

We investigate the electron-phonon (eph) 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 eph interaction in the metallic nanotube species only. The observed electron dynamics can be used to calculate eph 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 eph interaction approximately 50% smaller than predicted by tight-binding calculations.

  • Received 30 November 1999

DOI:https://doi.org/10.1103/PhysRevLett.84.5002

©2000 American Physical Society

Authors & Affiliations

Tobias Hertel and Gunnar Moos

  • Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany

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Vol. 84, Iss. 21 — 22 May 2000

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