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Updated: May 12, 2026

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
Published on: January 19, 2018
Symmetry dependence of vibration-assisted tunneling
Niko Pavliček1, Ingmar Swart, Judith Niedenführ
1Institute of Experimental and Applied Physics, University of Regensburg, 93053 Regensburg, Germany. niko.pavlicek@ur.de
Abstract:
We present spatially resolved vibronic spectroscopy of individual pentacene molecules in a double-barrier tunneling junction. It is observed that even for this effective single-level system the energy dissipation associated with electron attachment varies spatially by more than a factor of 2. This is in contrast to the usual treatment of electron-vibron coupling in the Franck-Condon picture. Our experiments unambiguously prove that the local symmetry of initial and final wave function determines the dissipation in electron transport.
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