Publication
Title
Tunable double Dirac cone spectrum in bilayer $\alpha$-graphyne
Author
Abstract
 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.
Language
English
Source (journal)
Applied physics letters / American Institute of Physics. - New York, N.Y., 1962, currens
Publication
New York, N.Y. : American Institute of Physics, 2013
ISSN
0003-6951 [print]
1077-3118 [online]
Volume/pages
103:1(2013), p. 1-4
Article Reference
013105
ISI
000321497200032
Medium
E-only publicatie
Full text (Publishers DOI)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address