Fig. 1: Modulation experiments on a para-connected naphthalenophane (para-NP) using the mechanically controlled break-junction (MCBJ) technique.
From: Mechanoelectric sensitivity reveals destructive quantum interference in single-molecule junctions
a Acetyl-protected form of the para-connected naphthalenophane, para-NP. b MCBJ set-up. c Modulation experiment using the MCBJ. Top panel: triangular wave (orange) applied to the piezo-electric element, connected to the pushing rod, resulting in a modulated distance between the electrodes of 0.3 nm. Center and bottom panels: different types of conductance response of the molecular junction on the electrode distance modulation. Center panel: in-phase (red) and anti-phase (light blue) conductance response. Bottom panel: double-frequency conductance response (blue). d Reconstruction of the quantum interference dip using data from the bottom panel in (c): individual dips (blue) and their average (black).
