Nano Archive

Strain effects in graphene and graphene nanoribbons: The underlying mechanism

Li, Yang and Jiang, Xiaowei and Liu, Zhongfan and Liu, Zhirong (2010) Strain effects in graphene and graphene nanoribbons: The underlying mechanism. Nano Research, 3 (8). pp. 545-556. ISSN 1998-0124 (Print) 1998-0000 (Online)

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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.

Item Type:Article
Subjects:Physical Science > Nano objects
Material Science > Nanostructured materials
ID Code:9518
Deposited By:M T V
Deposited On:23 Aug 2010 14:21
Last Modified:23 Aug 2010 14:21

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