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Graphene at the edge: Stability and dynamics

Cited 1045 time in Web of Science Cited 1118 time in Scopus
Authors

Girit, Çaǧlar Ö.; Meyer, Jannik C.; Erni, Rolf; Rossell, Marta D.; Kisielowski, C.; Yang, Li; Park, Cheol-Hwan; Crommie, M.F.; Cohen, Marvin L.; Louie, Steven G.; Zettl, A.

Issue Date
2009-03
Publisher
American Association for the Advancement of Science
Citation
Science, Vol.323 No.5922, pp.1705-1708
Abstract
Although the physics of materials at surfaces and edges has been extensively studied, the movement of individual atoms at an isolated edge has not been directly observed in real time. With a transmission electron aberration-corrected microscope capable of simultaneous atomic spatial resolution and 1-second temporal resolution, we produced movies of the dynamics of carbon atoms at the edge of a hole in a suspended, single atomic layer of graphene. The rearrangement of bonds and beam-induced ejection of carbon atoms are recorded as the hole grows. We investigated the mechanism of edge reconstruction and demonstrated the stability of the "zigzag" edge configuration. This study of an ideal low-dimensional interface, a hole in graphene, exhibits the complex behavior of atoms at a boundary.
ISSN
0036-8075
URI
https://hdl.handle.net/10371/202384
DOI
https://doi.org/10.1126/science.1166999
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  • College of Natural Sciences
  • Department of Physics and Astronomy
Research Area Condensed Matter Physics, Nanoscale Photonics, Nanoscale Physics, 나노 물리와 나노 광자학, 응집 물질 물리

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