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Updated: Jun 8, 2026

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
Published on: January 19, 2018
Insight into action spectroscopy for single molecule motion and reactions through inelastic electron tunneling
Kenta Motobayashi1, Yousoo Kim, Hiromu Ueba
1Department of Advanced Materials Science, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan.
Abstract:
We propose a versatile formula that describes action spectra for vibrationally mediated reactions of single molecules with a scanning tunneling microscope. Spectral fitting of the formula to CO hopping and the configurational change of the cis-2-butene molecule on Pd(110) enables us to determine the vibrational energy, reaction order, and transition rate associated with anharmonic coupling between the modes excited by tunneling electrons and the reaction-coordinate modes. The formula proposed here is general and easy to apply to any vibrationally mediated motion and reaction of single molecules.
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