Atomic scale periodic ripples that extend for several nanometers on the surface of adjacent graphitic grains have been observed for the first time on highly ordered pyrolitic graphite by UHV-STM. The ripples emanate from a grain boundary, and are explained in terms of a mechanical deformation due to the elastic strain accumulated along the GB, which is relieved out-of-plane in the topmost graphene layer. We present a molecular dynamics model that accounts for the formation of similar ripples as result of the lattice mismatch induced by two different grain orientations.

Capasso, A., Placidi, E., Zhan, H., Perfetto, E., Bell, J., Gu, Y., et al. (2014). Graphene ripples generated by grain boundaries in highly ordered pyrolytic graphite. CARBON, 68, 330-336 [10.1016/j.carbon.2013.11.009].

Graphene ripples generated by grain boundaries in highly ordered pyrolytic graphite

Perfetto, E;Motta, N.
2014-01-01

Abstract

Atomic scale periodic ripples that extend for several nanometers on the surface of adjacent graphitic grains have been observed for the first time on highly ordered pyrolitic graphite by UHV-STM. The ripples emanate from a grain boundary, and are explained in terms of a mechanical deformation due to the elastic strain accumulated along the GB, which is relieved out-of-plane in the topmost graphene layer. We present a molecular dynamics model that accounts for the formation of similar ripples as result of the lattice mismatch induced by two different grain orientations.
2014
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/03 - FISICA DELLA MATERIA
English
Con Impact Factor ISI
Capasso, A., Placidi, E., Zhan, H., Perfetto, E., Bell, J., Gu, Y., et al. (2014). Graphene ripples generated by grain boundaries in highly ordered pyrolytic graphite. CARBON, 68, 330-336 [10.1016/j.carbon.2013.11.009].
Capasso, A; Placidi, E; Zhan, H; Perfetto, E; Bell, J; Gu, Y; Motta, N
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/250997
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