Nanomechanical properties of few-layer graphene membranes

Details Nanomechanical properties of few-layer graphene membranes Nanomechanical properties of few-layer graphene membranes

2008-02-04

arxiv.org/abs/0802.0413v1

Appl. Phys. Lett. 92, 063111 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 3 figures, This article has been accepted by Appl. Phys. Lett. After it is published, it will be found at http://apl.

Scientific paper

10.1063/1.2857472

We have measured the mechanical properties of few-layer graphene and graphite flakes that are suspended over circular holes. The spatial profile of the flake's spring constant is measured with an atomic force microscope. The bending rigidity of and the tension in the membranes are extracted by fitting a continuum model to the data. For flakes down to eight graphene layers, both parameters show a strong thickness-dependence. We predict fundamental resonance frequencies of these nanodrums in the GHz range based on the measured bending rigidity and tension.

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