Interplay between bending and stretching in carbon nanoribbons

Details Interplay between bending and stretching in carbon nanoribbons Interplay between bending and stretching in carbon nanoribbons

2010-06-03

arxiv.org/abs/1006.0597v1

Phys. Rev. B 81, 144105 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 6 figures

Scientific paper

10.1103/PhysRevB.81.144105

We investigate the bending properties of carbon nanoribbons by combining continuum elasticity theory and tight-binding atomistic simulations. First, we develop a complete analysis of a given bended configuration through continuum mechanics. Then, we provide by tight-binding calculations the value of the bending rigidity in good agreement with recent literature. We discuss the emergence of a stretching field induced by the full atomic-scale relaxation of the nanoribbon architecture. We further prove that such an in-plane strain field can be decomposed into a first contribution due to the actual bending of the sheet and a second one due to edge effects.

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