Structural and Electronic Properties ofGraphene: A Two-Dimensional Carbon Allotrope with Tetrarings
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- 31 May 2012
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 108 (22), 225505
- https://doi.org/10.1103/physrevlett.108.225505
Abstract
graphene, a two-dimensional carbon allotrope with tetrarings, is investigated by first-principles calculations. We demonstrate that buckled graphene has Dirac-like fermions and a high Fermi velocity similar to graphene even though it has nonequivalent bonds and possesses no hexagonal honeycomb structure. New features of the linear dispersions that are different from graphene are revealed. and bands and the two comprising sublattices are the key factors for the emergence of Dirac-like fermions. graphene and its two types of nanoribbon are expected to possess additional properties over graphene due to its different band structure. DOI: http://dx.doi.org/10.1103/PhysRevLett.108.225505 © 2012 American Physical Society
Keywords
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