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Title
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Tunable double Dirac cone spectrum in bilayer -graphyne
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Author
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Abstract
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| Monolayer alpha-graphyne was recently proposed as a new all-carbon material having an electronic spectrum consisting of Dirac cones. Based on a first-principles investigation of bilayer alpha-graphyne, we show that the electronic band structure is qualitatively different from its monolayer form and depends crucially on the stacking mode of the two layers. Two stable stacking modes are found: a configuration with a gapless parabolic band structure, similar to AB stacked bilayer graphene, and another one which exhibits a doubled Dirac-cone spectrum. The latter can be tuned by an electric field with a gap opening rate of 0.3 eA. (C) 2013 AIP Publishing LLC. |
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Language
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English
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Source (journal)
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Applied physics letters / American Institute of Physics. - New York, N.Y., 1962, currens
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Publication
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New York, N.Y.
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American Institute of Physics
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2013
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ISSN
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0003-6951
[print]
1077-3118
[online]
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DOI
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10.1063/1.4812977
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Volume/pages
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103
:1
(2013)
, p. 1-4
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Article Reference
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013105
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ISI
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000321497200032
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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