Skip to content.

TUD

search  |  internal  |  deutsch
Personal tools
TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology



Wednesday, 08 February 2006
(at 12:30 in room Phy 8.1.09)
Add to your Google Calendar

Journal-Club
Tunneling in suspended carbon nanotubes assisted by longitudinal phonons

Rafael Gutierrez

Institut für Theoretische Physik
Universität Regensburg
   






(From cond-mat/0508270): Current-voltage characteristics of suspended single-wall carbon nanotube quantum dots show a series of steps equally spaced in voltage. The energy scale of this harmonic, low-energy excitation spectrum is consistent with that of the longitudinal low-k phonon mode (stretching mode) in the nanotube. Agreement is found with a Franck-Condon-based model in which the phonon-assisted tunneling process is modeled as a coupling of electronic levels to underdamped quantum harmonic oscillators. Comparison with this model indicates a rather strong electron-phonon coupling factor of order unity.



slides (pdf)

related paper (html)

Invited by G. Cuniberti, C. Strunk (JClub)

Within the Journal Club 52 568

last modified: 2018.10.24 Mi
author: webadmin