IETS and quantum interference: propensity rules in the presence of an interference feature

Abstract

Destructive quantum interference in single molecule electronics is an intriguing phe- nomenon; however, distinguishing quantum interference effects from generically low transmission is not trivial. In this paper, we discuss how quantum interference ef- fects 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. Sec- ondly, we consider how inelastic electron tunneling spectroscopy can be used to probe the presence of an interference feature by identifying vibrational modes that are se- lectively 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.

19 pages, 6 figures

References in corpus (3)

• Electronics and Chemistry: Varying Single Molecule Junction Conductance Using Chemical Substituents
• Experimental Evidence for Quantum Interference and Vibrationally Induced Decoherence in Single-Molecule Junctions
• Quantum Interference and Decoherence in Single-Molecule Junctions: How Vibrations Induce Electrical Current

Cited by in corpus (2)

• Graph-theoretical evaluation of the inelastic propensity rules for molecules with destructive quantum interference
• Conformation Controllable Inelastic Charge Transport and Shot Noise Behavior in Metal-String Single Molecular Devices