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DOE OSTI · 1770670

Probing potential energy landscapes via electron-beam-induced single atom dynamics

Dyck, Ondrej·Ziatdinov, Maxim·Jesse, Stephen·Bao, Feng·Nobakht, Ali Yousefzadi·Maksov, Artem·Sumpter, Bobby G.·Archibald, Richard·Law, Kody J. H.·Kalinin, Sergei V.
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Abstract

Structure, bonding, and chemical dynamics of reactions at surfaces and interfaces, and therefore most material properties are intrinsically tied to the energetic landscape in which each atom resides. Here, we demonstrate that a moving atom under electron beam excitation can be used to probe the energy landscape along (confined) step edges, providing information about atomic-scale potentials. In conclusion, the techniques for experimentally exploring atomic potentials holds promise for predictive atom-by-atom fabrication using electron beams.

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36 MATERIALS SCIENCEatomic dynamicsgraphenepotential energy landscapescanning transmission electron microscope

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Dyck, Ondrej, Ziatdinov, Maxim, Jesse, Stephen, Bao, Feng, Nobakht, Ali Yousefzadi, Maksov, Artem, Sumpter, Bobby G., Archibald, Richard, Law, Kody J. H., Kalinin, Sergei V.. 2020-11-22. Probing potential energy landscapes via electron-beam-induced single atom dynamics. https://doi.org/10.1016/j.actamat.2020.116508

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