Atomically resolved real-space imaging of hot electron dynamics

Duncan Lock, Kristina Rusimova, Tianlau Pan, Richard E Palmer, Peter Sloan

Research output: Contribution to journalArticle

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Abstract

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.
Original languageEnglish
Article number8365
Pages (from-to)1-7
Number of pages7
JournalNature Communications
Volume6
Issue number8365
Early online date21 Sep 2015
DOIs
Publication statusPublished - 21 Sep 2015

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Hot electrons
hot electrons
Electrons
Imaging techniques
Temperature
Voltage measurement
two dimensional models
Temperature measurement
electrical measurement
temperature measurement
manipulators
Microscopes
microscopes
electron energy
Scanning
Equipment and Supplies
life (durability)
Molecules
scanning
temperature

Cite this

Atomically resolved real-space imaging of hot electron dynamics. / Lock, Duncan; Rusimova, Kristina; Pan, Tianlau; Palmer, Richard E; Sloan, Peter.

In: Nature Communications, Vol. 6, No. 8365, 8365, 21.09.2015, p. 1-7.

Research output: Contribution to journalArticle

Lock, Duncan ; Rusimova, Kristina ; Pan, Tianlau ; Palmer, Richard E ; Sloan, Peter. / Atomically resolved real-space imaging of hot electron dynamics. In: Nature Communications. 2015 ; Vol. 6, No. 8365. pp. 1-7.
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