Shifting the Voltage Drop in Electron Transport through a Single Molecule
Mesoscale and Nanoscale Physics
2015-07-03 v2 Strongly Correlated Electrons
Abstract
A Mn-porphyrin was contacted on Au(111) in a low-temperature scanning tunneling microscope (STM). Differential conductance spectra show a zero-bias resonance that is due to an underscreened Kondo effect according to many-body calculations. When the Mn center is contacted by the STM tip, the spectrum appears to invert along the voltage axis. A drastic change in the electrostatic potential of the molecule involving a small geometric relaxation is found to cause this observation.
Cite
@article{arxiv.1506.04618,
title = {Shifting the Voltage Drop in Electron Transport through a Single Molecule},
author = {Sujoy Karan and David Jacob and Michael Karolak and Christian Hamann and Yongfeng Wang and Alexander Weismann and Alexander I. Lichtenstein and Richard Berndt},
journal= {arXiv preprint arXiv:1506.04618},
year = {2015}
}
Comments
8 pages, 8 figures (including supplemental material); accepted in Phys. Rev. Lett