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Defect Dynamics in Graphene
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Author(s): Aalim M. Malik (National Institute of Technology, Srinagar, India), M. Ashraf Shah (National Institute of Technology, Srinagar, India), Nikhilesh K. Dilwaliya (National Institute of Technology, Srinagar, India)and Vikash Dahiya (National Institute of Technology, Srinagar, India)
Copyright: 2020
Volume: 5
Issue: 1
Pages: 9
Source title:
International Journal of Applied Nanotechnology Research (IJANR)
Editor(s)-in-Chief: Bakhtiyor Rasulev (North Dakota State University, USA)
DOI: 10.4018/IJANR.20200101.oa3
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Abstract
The experimental and theoretical study of graphene, two-dimensional (2D) graphite, is an extremely rapidly growing field of today's condensed matter research. Different types of disorder in graphene modify the Dirac equation leading to unusual spectroscopic and transport properties. The authors studied one of the disorders (i.e., grain boundaries) and formulated a theoretical model of graphene grain boundary by generalizing the two-dimensional graphene Dirac Hamiltonian model. In this model only, the authors considered the long-wavelength limit of the particle transport, which provides the main contribution to the graphene conductance. In this work, they derived the Hamiltonian in a rotated side dependent reference frame describing crystallographic axes mismatching at a grain boundary junction and showed that properties like energy spectrum are an independent reference frame. Also, they showed one of the topological property of graphene.
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