Tunneling in suspended carbon nanotubes assisted by longitudinal phonons

Details Tunneling in suspended carbon nanotubes assisted by longitudinal phonons Tunneling in suspended carbon nanotubes assisted by longitudinal phonons

2005-08-10

arxiv.org/abs/cond-mat/0508270v1

Phys. Rev. Lett. 96, 026801 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages

Scientific paper

10.1103/PhysRevLett.96.026801

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.

Affiliated with

Also associated with

No associations

Rating

Tunneling in suspended carbon nanotubes assisted by longitudinal phonons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Tunneling in suspended carbon nanotubes assisted by longitudinal phonons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunneling in suspended carbon nanotubes assisted by longitudinal phonons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-277175