Current-induced nonequilibrium vibrations in single-molecule devices
| dc.creator | Koch, Jens | |
| dc.creator | Semmelhack, Matthias | |
| dc.creator | von Oppen, Felix | |
| dc.creator | Nitzan, Abraham | |
| dc.date | 2005-04-05 | |
| dc.date | 2006-04-16 | |
| dc.date.accessioned | 2026-07-07T06:37:39Z | |
| dc.date.available | 2026-07-07T06:37:39Z | |
| dc.description | Finite-bias electron transport through single molecules generally induces nonequilibrium molecular vibrations (phonons). By a mapping to a Fokker-Planck equation, we obtain analytical scaling forms for the nonequilibrium phonon distribution in the limit of weak electron-phonon coupling $λ$ within a minimal model. Remarkably, the width of the phonon distribution diverges as $\simλ^{-α}$ when the coupling decreases, with voltage-dependent, non-integer exponents $α$. This implies a breakdown of perturbation theory in the electron-phonon coupling for fully developed nonequilibrium. We also discuss possible experimental implications of this result such as current-induced dissociation of molecules. | |
| dc.description | 7 pages, 4 figures; revised and extended version published in Phys. Rev. B | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0504095 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0504095 | |
| dc.identifier | Phys. Rev. B 73, 155306 (2006) | |
| dc.identifier | doi:10.1103/PhysRevB.73.155306 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/100467 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Current-induced nonequilibrium vibrations in single-molecule devices | |
| dc.type | text |