Atomically resolved real-space imaging of hot electron dynamics



The dynamics of hot electrons are central to understanding the properties of many electronic devices. But their ultra-short lifetime, typically 100 fs or less, and hence their corresponding transport length-scale of a few nanometers severely constrains real space investigations. Here we report variable temperature and voltage measurements of the nonlocal manipulation of adsorbed molecules on the Si(111)-7x7 surface in the scanning tunnelling microscope. The range of the nonlocal effect increases with temperature and, at constant temperature, is invariant over a wide range of electron energies. The measurements probe, in real space, the underlying hot electron dynamics on the 10 nm scale and are well described by a two-dimensional diffusive model with a single decay channel, consistent with 2PPE measurements of the real time dynamics.
Date made available2015
PublisherUniversity of Bath

Cite this

Lock, D. (Creator), Rusimova, K. (Creator), Pan, T. (Creator), Palmer, R. E. (Creator), Sloan, P. (Creator) (2015). Atomically resolved real-space imaging of hot electron dynamics. University of Bath. 10.15125/BATH-00126