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arXiv · 1305.5137

Edge states of zigzag graphene nanoribbons with B and N doping at edge atoms

Tomoaki Kaneko·Kikuo Harigaya
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Abstract

Using a tight binding model, we theoretically study the electronic properties of zigzag boron-carbon-nitride (BCN) nanoribbons where the outermost C atoms of zigzag graphene nanoribbons are replaced with B and N atoms. We show that the flat bands and edge states appear at the Fermi level when the number of B and N atoms are equal except the case of six times supercell. To investigate the origin of the edge states in BCN nanoribbons, we consider the semi-infinite graphene sheet with zigzag edge where outermost C atoms are replaced with B and N atoms. We analytically demonstrate the presence of edge states at the zigzag edges and flat bands using a transfer matrix method.

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Tomoaki Kaneko, Kikuo Harigaya. 2013-05-22. Edge states of zigzag graphene nanoribbons with B and N doping at edge atoms. https://arxiv.org/abs/1305.5137

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