Abstract
We show that Franck-Condon physics leads to a significant current suppression at low bias voltages (termed Franck-Condon blockade) in transport through single molecules with strong coupling between electronic and vibrational degrees of freedom. Transport in this regime is characterized by remarkably large Fano factors (102-103 for realistic parameters), which arise due to avalanchelike transport of electrons. Avalanches occur in a self-similar manner over a wide range of time scales, leading to power-law dependences of the current noise on frequency and vibrational relaxation rate.
| Original language | English (US) |
|---|---|
| Article number | 206804 |
| Journal | Physical review letters |
| Volume | 94 |
| Issue number | 20 |
| DOIs | |
| State | Published - May 27 2005 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Koch, J., & Von Oppen, F. (2005). Franck-Condon blockade and giant Fano factors in transport through single molecules. Physical review letters, 94(20), [206804]. https://doi.org/10.1103/PhysRevLett.94.206804