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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Official URL: http://www.springerlink.com/content/v37811t4287723...
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.
|Subjects:||Physical Science > Nano objects|
Material Science > Nanostructured materials
|Deposited By:||M T V|
|Deposited On:||23 Aug 2010 14:21|
|Last Modified:||23 Aug 2010 14:21|
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