title: IETS and quantum interference: propensity rules in the presence of an interference feature.
abstract: Destructive quantum interference in single molecule electronics is an intriguing phenomenon; however, distinguishing quantum interference effects from generically low transmission is not trivial. In this paper, we discuss how quantum interference effects in the transmission lead to either low current or a particular line shape in current-voltage curves, depending on the position of the interference feature. Second, we consider how inelastic electron tunneling spectroscopy can be used to probe the presence of an interference feature by identifying vibrational modes that are selectively suppressed when quantum interference effects dominate. That is, we expand the understanding of propensity rules in inelastic electron tunneling spectroscopy to molecules with destructive quantum interference.
authors.affiliation: Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
authors.forename: Jacob
authors.initials: J
authors.lastname: Lykkebo
authors.affiliation: Technische Universität München, Electrical Engineering and Information Tech., Arcisstr. 21, 80333 München, Germany.
authors.forename: Alessio
authors.initials: A
authors.lastname: Gagliardi
authors.affiliation: Consiglio Nazionale delle Ricerche, ISMN, Via Salaria km 29.6, 00017 Monterotondo (Rome), Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Pecchia
authors.affiliation: Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
authors.forename: Gemma C
authors.initials: GC
authors.lastname: Solomon