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Atomically resolved real-space imaging of hot electron dynamics

D. Lock, K. R. Rusimova, T. L. Pan, R. E. Palmer, P. A. Sloan, Richard Palmer Orcid Logo

Nature Communications, Volume: 6, Issue: 1

Swansea University Author: Richard Palmer Orcid Logo

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DOI (Published version): 10.1038/ncomms9365

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 correspondingly short transport length-scale in the nanometre range constrain real-space investigations. Here we report variable tempera...

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Published in: Nature Communications
ISSN: 2041-1723 2041-1723
Published: 2015
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URI: https://cronfa.swan.ac.uk/Record/cronfa39514
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first_indexed 2018-04-19T19:35:19Z
last_indexed 2021-01-08T04:02:23Z
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spelling 2021-01-07T14:03:08.3369560 v2 39514 2018-04-19 Atomically resolved real-space imaging of hot electron dynamics 6ae369618efc7424d9774377536ea519 0000-0001-8728-8083 Richard Palmer Richard Palmer true false 2018-04-19 MECH 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 correspondingly short transport length-scale in the nanometre range constrain real-space investigations. Here we report variable temperature and voltage measurements of the nonlocal manipulation of adsorbed molecules on the Si(111)-7 × 7 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 2-photon photo-emission (2PPE) measurements of the real time dynamics. Journal Article Nature Communications 6 1 2041-1723 2041-1723 Condensed-matter physics, Reaction kinetics and dynamics, Scanning probe microscopy 21 9 2015 2015-09-21 10.1038/ncomms9365 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2021-01-07T14:03:08.3369560 2018-04-19T15:30:19.7420399 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering D. Lock 1 K. R. Rusimova 2 T. L. Pan 3 R. E. Palmer 4 P. A. Sloan 5 Richard Palmer 0000-0001-8728-8083 6
title Atomically resolved real-space imaging of hot electron dynamics
spellingShingle Atomically resolved real-space imaging of hot electron dynamics
Richard Palmer
title_short Atomically resolved real-space imaging of hot electron dynamics
title_full Atomically resolved real-space imaging of hot electron dynamics
title_fullStr Atomically resolved real-space imaging of hot electron dynamics
title_full_unstemmed Atomically resolved real-space imaging of hot electron dynamics
title_sort Atomically resolved real-space imaging of hot electron dynamics
author_id_str_mv 6ae369618efc7424d9774377536ea519
author_id_fullname_str_mv 6ae369618efc7424d9774377536ea519_***_Richard Palmer
author Richard Palmer
author2 D. Lock
K. R. Rusimova
T. L. Pan
R. E. Palmer
P. A. Sloan
Richard Palmer
format Journal article
container_title Nature Communications
container_volume 6
container_issue 1
publishDate 2015
institution Swansea University
issn 2041-1723
2041-1723
doi_str_mv 10.1038/ncomms9365
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 0
active_str 0
description 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 correspondingly short transport length-scale in the nanometre range constrain real-space investigations. Here we report variable temperature and voltage measurements of the nonlocal manipulation of adsorbed molecules on the Si(111)-7 × 7 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 2-photon photo-emission (2PPE) measurements of the real time dynamics.
published_date 2015-09-21T03:50:11Z
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score 11.013641

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