Barriers to motion and rotation of graphene layers based on measurements of shear mode frequencies

Abstract

Both van der Waals corrected density functional theory and classical calculations show that the potential relief of interaction energy between layers of graphite and few-layer graphene can be described by a simple expression containing only the first Fourier components. Thus a set of physical quantities and phenomena associated with in-plane relative vibration, translational motion and rotation of graphene layers are interrelated and are determined by a single parameter characterizing the roughness of the potential energy relief. This relationship is used to estimate the barriers to relative motion and rotation of graphene layers based on experimental measurements of shear mode frequencies.

16 pages, 1 figure

References in corpus (8)

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• The structure of suspended graphene sheets
• On the roughness of single- and bi-layer graphene membranes
• Self-Retracting Motion of Graphite Microflakes
• Commensurate-incommensurate phase transition in bilayer graphene
• Fast diffusion of graphene flake on graphene layer
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