Electronic structure of a disordered grain boundary in graphene

Lambin, Philippe and Vancsó, Péter and Nemes Incze, Péter and Márk, Géza István and Biró, László Péter (2013) Electronic structure of a disordered grain boundary in graphene. In: Physics, chemistry and applications of nanostructures: Proceedings of International Conference Nanomeeting 2013. World Scientific Publishing Company, pp. 203-206. ISBN 9789814460170

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Abstract

Grain boundaries are constitutional elements of graphene grown on a solid metallic surface by CVD. The electronic properties of computer models of grain boundaries in graphene have been investigated by tight-binding calculations and compared with available ab-initio data and with recent experimental scanning tunneling spectroscopic measurements. It is shown that twofold coordinated atoms and non-hexagonal rings, both present in grain boundaries, give rise to specific features in the local density of states.

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