title: Vibration-assisted electron tunneling in C140 transistors.
abstract: We measure electron tunneling in transistors made from C(140), a molecule with a mass-spring-mass geometry chosen as a model system to study electron-vibration coupling. We observe vibration-assisted tunneling at an energy corresponding to the stretching mode of C(140). Molecular modeling provides explanations for why this mode couples more strongly to electron tunneling than to the other internal modes of the molecule. We make comparisons between the observed tunneling rates and those expected from the Franck-Condon model.
authors.affiliation: Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853, USA.
authors.forename: A N
authors.initials: AN
authors.lastname: Pasupathy
authors.forename: J
authors.initials: J
authors.lastname: Park
authors.forename: C
authors.initials: C
authors.lastname: Chang
authors.forename: A V
authors.initials: AV
authors.lastname: Soldatov
authors.forename: S
authors.initials: S
authors.lastname: Lebedkin
authors.forename: R C
authors.initials: RC
authors.lastname: Bialczak
authors.forename: J E
authors.initials: JE
authors.lastname: Grose
authors.forename: L A K
authors.initials: LA
authors.lastname: Donev
authors.forename: J P
authors.initials: JP
authors.lastname: Sethna
authors.forename: D C
authors.initials: DC
authors.lastname: Ralph
authors.forename: P L
authors.initials: PL
authors.lastname: McEuen
mesh_terms: D002244:Carbon / Q000032:analysis / Q000737:chemistry*; D003198:Computer Simulation; D004553:Electric Conductivity; D004563:Electrochemistry / Q000379:methods*; D004579:Electron Transport; D004583:Electrons; D008422:Materials Testing; D008956:Models, Chemical; D049329:Nanostructures / Q000032:analysis / Q000737:chemistry* / Q000648:ultrastructure*; D014173:Transistors, Electronic; D014732:Vibration
chemical_list: D002244:Carbon