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.
Keywords
Cite
@article{arxiv.1409.3388,
title = {IETS and quantum interference: propensity rules in the presence of an interference feature},
author = {Jacob Lykkebo and Alessio Gagliardi and Alessandro Pecchia and Gemma C. Solomon},
journal= {arXiv preprint arXiv:1409.3388},
year = {2014}
}
Comments
19 pages, 6 figures