Jørgensen, Jacob Lykkebo4; Gagliardi, Alessio2; Pecchia, Alessandro3; Solomon, Gemma4
1 Administration, Department of Chemistry, Faculty of Science, Københavns Universitet2 Technische Universität München3 ISMN4 Administration, Department of Chemistry, Faculty of Science, Københavns Universitet
propensity rules in the presence of an interference feature
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.