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

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 ener...

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Bibliographic Details
Published in:Acta materialia 2021-01, Vol.203, p.116508, Article 116508
Main Authors: Dyck, O., Ziatdinov, M., Jesse, S., Bao, F., Nobakht, A. Yousefzadi, Maksov, A., Sumpter, B.G., Archibald, R., Law, K.J.H., Kalinin, S.V.
Format: Article
Language:English
Subjects:
atomic dynamics
graphene
potential energy landscape
scanning transmission electron microscope
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Summary: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. The techniques for experimentally exploring atomic potentials holds promise for predictive atom-by-atom fabrication using electron beams. [Display omitted]
ISSN:1359-6454
1873-2453
DOI:10.1016/j.actamat.2020.116508