Surface dynamics lie at the heart of many areas of materials and chemical science, including heterogeneous catalysis, epitaxial growth, and device fabrication. Characterizing the dynamics of surface adsorption, reactions, and diffusion at the atomic scale is crucial to understanding and controlling such processes. Here, we use aberration-corrected scanning transmission electron microscopy to analyze the diffusive behavior of Pt atoms adsorbed on the Si(110) surface and characterize the effects of the electron beam on adatom motion, including a bias introduced by the raster scan of the probe. We further observe the evolution of the Si(110) surface, revealing evidence of developing surface steps attributed to the 16 × 2 surface reconstruction. These results demonstrate a framework for studying complex atomic-scale surface dynamics using aberration-corrected electron microscopy.
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29 October 2018
Research Article|
November 01 2018
Adatom dynamics and the surface reconstruction of Si(110) revealed using time-resolved electron microscopy
Tom Furnival;
Tom Furnival
1
Department of Materials Science and Metallurgy, University of Cambridge
, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
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Daniel Knez;
Daniel Knez
a)
2
Institute for Electron Microscopy and Nanoanalysis (FELMI), Graz University of Technology
, Steyrergasse 17, 8010 Graz, Austria
3
Graz Centre for Electron Microscopy (ZFE)
, Steyrergasse 17, 8010 Graz, Austria
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Eric Schmidt
;
Eric Schmidt
1
Department of Materials Science and Metallurgy, University of Cambridge
, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
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Rowan K. Leary;
Rowan K. Leary
1
Department of Materials Science and Metallurgy, University of Cambridge
, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
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Gerald Kothleitner;
Gerald Kothleitner
2
Institute for Electron Microscopy and Nanoanalysis (FELMI), Graz University of Technology
, Steyrergasse 17, 8010 Graz, Austria
3
Graz Centre for Electron Microscopy (ZFE)
, Steyrergasse 17, 8010 Graz, Austria
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Ferdinand Hofer;
Ferdinand Hofer
2
Institute for Electron Microscopy and Nanoanalysis (FELMI), Graz University of Technology
, Steyrergasse 17, 8010 Graz, Austria
3
Graz Centre for Electron Microscopy (ZFE)
, Steyrergasse 17, 8010 Graz, Austria
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Paul D. Bristowe
;
Paul D. Bristowe
1
Department of Materials Science and Metallurgy, University of Cambridge
, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
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Paul A. Midgley
Paul A. Midgley
a)
1
Department of Materials Science and Metallurgy, University of Cambridge
, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
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Appl. Phys. Lett. 113, 183104 (2018)
Article history
Received:
August 21 2018
Accepted:
October 16 2018
Citation
Tom Furnival, Daniel Knez, Eric Schmidt, Rowan K. Leary, Gerald Kothleitner, Ferdinand Hofer, Paul D. Bristowe, Paul A. Midgley; Adatom dynamics and the surface reconstruction of Si(110) revealed using time-resolved electron microscopy. Appl. Phys. Lett. 29 October 2018; 113 (18): 183104. https://doi.org/10.1063/1.5052729
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