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Yu, S; Li, XD; Wu, SQ; Wen, YH; Zhou, S; Zhu, ZZ; Zhu, ZZ (reprint author), Xiamen Univ, Dept Phys, 422 Simin Nanlu Xiamen, Fujian 361005, Peoples R China.
Novel electronic structures of superlattice composed of graphene and silicene
Source PublicationMATERIALS RESEARCH BULLETIN
Language英语
KeywordTotal-energy Calculations Wave Basis-set
AbstractSuperlattice is a major force in providing man-made materials with unique properties. Here we report a study of the structural and electronic properties of a superlattice made with alternate stacking of graphene and hexagonal silicene. Three possible stacking models, i.e., the top-, bridge- and hollow-stacking, are considered. The top-stacking is found to be the most stable pattern. Although both the freestanding graphene and silicene are semi-metals, our results suggest that the graphene and silicene layers in the superlattice both exhibit metallic electronic properties due to a small amount of charge transfer from the graphene to the silicene layers. More importantly, the Dirac point of graphene is folded to the Gamma-point of the superlattice, instead of the K-point in the isolated graphene. Such a change in the Dirac point of graphene could lead to significant change in the transportation property of the graphene layer. Moreover, the band structure and the charge transfer indicate that the interaction between the stacking sheets in the graphene/silicene superlattice is more than just the van der Waals interaction. (C) 2013 Elsevier Ltd. All rights reserved.
2014
ISSN0025-5408
Volume50Issue:-Pages:268-272
Subject AreaPhysics
DOI10.1016/j.materresbull.2013.11.033
Indexed BySCI
Funding OrganizationNational 973 Program of China [2011CB935903]; National Natural Science Foundation of Chinaunder [11004165, 21233004, 11104229] ; National 973 Program of China [2011CB935903]; National Natural Science Foundation of Chinaunder [11004165, 21233004, 11104229] ; National 973 Program of China [2011CB935903]; National Natural Science Foundation of Chinaunder [11004165, 21233004, 11104229] ; National 973 Program of China [2011CB935903]; National Natural Science Foundation of Chinaunder [11004165, 21233004, 11104229]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15484
Collection理论物理所科研产出_SCI论文
Corresponding AuthorZhu, ZZ (reprint author), Xiamen Univ, Dept Phys, 422 Simin Nanlu Xiamen, Fujian 361005, Peoples R China.
Recommended Citation
GB/T 7714
Yu, S,Li, XD,Wu, SQ,et al. Novel electronic structures of superlattice composed of graphene and silicene[J]. MATERIALS RESEARCH BULLETIN,2014,50(-):268-272.
APA Yu, S.,Li, XD.,Wu, SQ.,Wen, YH.,Zhou, S.,...&Zhu, ZZ .(2014).Novel electronic structures of superlattice composed of graphene and silicene.MATERIALS RESEARCH BULLETIN,50(-),268-272.
MLA Yu, S,et al."Novel electronic structures of superlattice composed of graphene and silicene".MATERIALS RESEARCH BULLETIN 50.-(2014):268-272.
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