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Journal Article

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

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Hertel,  Tobias
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Moos,  Gunnar
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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PhysRevLett.84.5002.pdf
(Publisher version), 110KB

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Citation

Hertel, T., & Moos, G. (2000). Electron-Phonon Interaction in Single-Wall Carbon Nanotubes: A Time Domain Study. Physical Review Letters, 84(21), 5002-5005. doi:10.1103/PhysRevLett.84.5002.


Cite as: https://hdl.handle.net/21.11116/0000-0009-475A-3
Abstract
We investigate the electron-phonon (e-ph) 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 e-ph interaction in the metallic nanotube species only. The observed electron dynamics can be used to calculate e-ph 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 e-ph interaction approximately 50% smaller than predicted by tight-binding calculations.