Mechanical Properties of Graphene
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Publisher
Journal
Applied Physics Reviews
ISSN
1931-9401
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Show full item recordAbstract
The mechanical properties of graphene are reviewed with particular attention to what is established and what is still uncertain. The thickness and the elastic constants are clarified, and by considering also phonon frequencies it is argued that “best values” come from graphite, when available. Properties not available from graphite include the bending stiffness; this can be determined from studies of carbon nanotubes as well as graphene. In many ways nanotubes provide access to fundamental properties of graphene, not least as they are the only form of graphene that can be unsupported (unstrained) in vacuum. Environmental effects are considered, both interactions with substrates and with other solid and liquid media which may affect the geometrical parameters defining graphene and associated elastic constant. Major uncertainties persist whether slipping or sticking dominates experimental observation, both between graphene and solid media, and between the layers of bilayer and multilayer graphene. The paper concludes with a short discussion of continuum and atomistic models of graphene.
Authors
Sun, YW; Papageorgiou, D; Puech, P; Proctor, JE; Machon, D; Bousige, C; San-Miguel, A; Humphreys, C; Dunstan, DJCollections
- Physics and Astronomy [1280]