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Research Article | Open Access
Strain Effects in Graphene and Graphene Nanoribbons: The Underlying Mechanism
Zhirong Liu1(
)
)Abstract
A tight-binding analytic framework is combined with first-principles calculations to reveal the mechanism underlying the strain effects on electronic structures of graphene and graphene nanoribbons (GNRs). It provides a unified and precise formulation of the strain effects under various circumstances—including the shift of the Fermi (Dirac) points, the change in band gap of armchair GNRs with uniaxial strain in a zigzag pattern and its insensitivity to shear strain, and the variation of the k-range of edge states in zigzag GNRs under uniaxial and shear strains which determine the gap behavior via the spin polarization interaction.
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Pages 545-556
Cite this article:
Li Y, Jiang X, Liu Z, et al. Strain Effects in Graphene and Graphene Nanoribbons: The Underlying Mechanism. Nano Research, 2010, 3(8): 545-556. https://doi.org/10.1007/s12274-010-0015-7
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