First-principles investigation of graphene on the ferroelectric LiNbO3 (001) surface

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	First-principles investigation of graphene on the ferroelectric LiNbO3 (001) surface
	Ding, J ; Wen, LW ; Li, HD ; Kang, XB ; Zhang, JM
刊名	EPL
	2013
卷号	104 期号:1
ISSN号	0295-5075
通讯作者	Ding, J (reprint author), Henan Inst Engn, Coll Sci, Zhengzhou 451191, Peoples R China.
中文摘要	Recent experiments on graphene-ferroelectric field-effect transistors have introduced an excellent nonvolatility functionality. However, the mechanism of the antihysteresis behavior of graphene on some ferroelectric substrates is controversial. We carry out first-principles calculations to study the interface interaction between graphene and the ferroelectric LiNbO3(001) surface, and find that, when putting a bilayer graphene on a clean surface, the spontaneous polarization field can induce a gap of about 311 meV. If the clean surface is passivated with hydrogen, the electrons are trapped at the interface and nearly screen the polarization field. Our results reveal that the antihysteresis behavior originates from the charge trapping which occurs at the hydrogenated graphene-ferroelectric interface. Copyright (C) EPLA, 2013
资助信息	National Natural Science Foundation of China [10974231, 11147139]; science and technology research program of He'nan Province of China [132102210141]
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57023]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Ding, J,Wen, LW,Li, HD,et al. First-principles investigation of graphene on the ferroelectric LiNbO3 (001) surface[J]. EPL,2013,104(1).
APA	Ding, J,Wen, LW,Li, HD,Kang, XB,&Zhang, JM.(2013).First-principles investigation of graphene on the ferroelectric LiNbO3 (001) surface.EPL,104(1).
MLA	Ding, J,et al."First-principles investigation of graphene on the ferroelectric LiNbO3 (001) surface".EPL 104.1(2013).