Data for paper: Initiating and imaging the coherent surface dynamics of charge carriers in real space

Data for paper: Initiating and imaging the coherent surface dynamics of charge carriers in real space

The tip of a scanning tunnelling microscope is an atomic-scale source of electrons and holes. As the injected charge spreads out it can induce adsorbed molecules to react. By comparing large-scale `before' and `after' images of an adsorbate covered surface, the spatial extent of the nonlocal manipulation is revealed. Here we measure the nonlocal manipulation of toluene molecules on the Si(111)-7x7 surface at room temperature. Both the range and probability of nonlocal manipulation have a voltage dependence. A region within 5 to 15 nm of the injection site shows a marked reduction in manipulation. We propose that this region marks the extent of the initial coherent (i.e., ballistic) time-dependent evolution of the injected charge carrier. Using scanning tunnelling spectroscopy, we develop a model of this time-dependent expansion of the initially localized hole wavepacket within a particular surface state and deduce a quantum coherence (ballistic) lifetime of about 10 fs.

Subjects:
Chemical reaction dynamics and mechanisms
Superconductivity, magnetism and quantum fluids

Cite this dataset as:
Sloan, P., Rusimova, K., Bannister, N., Harrison, P., Crampin, S., Palmer, R., Lock, D., 2016. Data for paper: Initiating and imaging the coherent surface dynamics of charge carriers in real space. University of Bath. https://doi.org/10.15125/BATH-00230.

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Data

Figure1.txt
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Figure2_FC.txt
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Figure2_FM.txt
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Figure2_UC.txt
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Figure2_UM.txt
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Figure4_FC.txt
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Figure4_FM.txt
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Figure4_UC.txt
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Figure4_UM.txt
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FigureS2.txt
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FigureS6.txt
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FigureS10.txt
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RawData.xlsx
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet (273kB)

Creators

Peter Sloan
University of Bath

Kristina Rusimova
University of Bath

Nicola Bannister
University of Bath

Patrick Harrison
University of Birmingham

Simon Crampin
University of Bath

Richard Palmer
University of Birmingham

Duncan Lock
University of Bath

Coverage

Collection date(s):

From 20 September 2014 to 1 September 2015

Temporal coverage:

From 1 January 2012 to 1 January 2016

Documentation

Data collection method:

Please see main paper methods section. For radial distributions we present the thermally corrected N/N0 data, again see methods section for details.

Additional information:

SJB Custom Low Temperature STM

Funders

Engineering and Physical Sciences Research Council (EPSRC)
https://doi.org/10.13039/501100000266

Breaking the Single Atom Limit in Atomic Manipulation
EP/K00137X/1

Publication details

Publication date: 27 July 2016
by: University of Bath

Version: 1

DOI: https://doi.org/10.15125/BATH-00230

URL for this record: https://researchdata.bath.ac.uk/id/eprint/230

Related articles

Sloan, P. A. and Sakulsermsuk, S. and Palmer, R. E., 2010. Nonlocal Desorption of Chlorobenzene Molecules from theSi(111)−(7×7)Surface by Charge Injection from the Tip of a Scanning Tunneling Microscope: Remote Control of Atomic Manipulation. Physical Review Letters, 105(4). Available from: https://doi.org/10.1103/PhysRevLett.105.048301.

Lock, D., Rusimova, K. R., Pan, T. L., Palmer, R. E. and Sloan, P. A., 2015. Atomically resolved real-space imaging of hot electron dynamics. Nature Communications, 6(1). Available from: https://doi.org/10.1038/ncomms9365.

Lock, D, Sakulsermsuk, S, Palmer, R E and Sloan, P A, 2014. Mapping the site-specific potential energy landscape for chemisorbed and physisorbed aromatic molecules on the Si(1 1 1)-7 × 7 surface by time-lapse STM. Journal of Physics: Condensed Matter, 27(5), p.054003. Available from: https://doi.org/10.1088/0953-8984/27/5/054003.

Pan, T. and Sloan, P. A. and Palmer, R. E., 2014. Non-Local Atomic Manipulation on Semiconductor Surfaces in the STM: The Case of Chlorobenzene on Si(111)-7×7. The Chemical Record, 14(5), pp.841-847. Available from: https://doi.org/10.1002/tcr.201402021.

Rusimova, K. R., Bannister, N., Harrison, P., Lock, D., Crampin, S., Palmer, R. E. and Sloan, P. A., 2016. Initiating and imaging the coherent surface dynamics of charge carriers in real space. Nature Communications, 7, p.12839. Available from: https://doi.org/10.1038/ncomms12839.

Contact information

Please contact the Research Data Service in the first instance for all matters concerning this item.

Contact person: Peter Sloan

Departments:

Faculty of Science
Physics