Stable planar single-layer hexagonal silicene under tensile strain and its anomalous Poisson

doi:10.1063/1.4866415

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	Stable planar single-layer hexagonal silicene under tensile strain and its anomalous Poisson
	Wang BL(王宝林); Wu JT(吴江涛); Gu XK; Yin HQ; Wei YJ(魏宇杰); Yang RG; Dresselhaus M; Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
发表期刊	Applied Physics Letter
	2014-02-22
卷号	104 期号:8 页码:81902
ISSN	0003-6951
摘要	Here, we report the structural and mechanical properties of several two-dimensional (2-D) materials by using first-principles density functional theory calculations. We find that the buckled single-layer silicene could transit to planar hexagonal silicene at a critical tensile strain of 0.20. Phonon dispersion analysis suggests that the planar hexagonal silicene under tension is stable. The Poisson's ratio of silicene and MoS2 shows strong anisotropy: it increases while stretched in the zigzag direction, but decreases when strained in the armchair direction. When stretched in the zigzag direction, the Poisson's ratio of silicene could reach 0.62. (C) 2014 AIP Publishing LLC.
关键词	Root Fracture Dentine Ageing Biomechanics Nano-indentation Finite Element Analysis
学科领域	Physics
DOI	10.1063/1.4866415
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000332619100037
项目资助者	Y.W. acknowledges the support from Chinese Academy of Sciences (CAS), National Natural Science Foundation of China (NSFC) (Nos. 11021262 and 11272327), and MOST 973 of China (No. 2012CB937500). Computation is supported by the Computation Center of CAS. R.Y. acknowledges the support from NSF and AFOSR. M. S. D. acknowledges the support of NSF/DMR-10-04147.
课题组名称	LNM微结构计算力学（筹）
论文分区	一类
引用统计	被引频次：52[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/48784
专题	非线性力学国家重点实验室
通讯作者	Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Wang BL,Wu JT,Gu XK,et al. Stable planar single-layer hexagonal silicene under tensile strain and its anomalous Poisson[J]. Applied Physics Letter,2014,104,8,:81902.
APA	Wang BL.,Wu JT.,Gu XK.,Yin HQ.,Wei YJ.,...&Wei, YJ .(2014).Stable planar single-layer hexagonal silicene under tensile strain and its anomalous Poisson.Applied Physics Letter,104(8),81902.
MLA	Wang BL,et al."Stable planar single-layer hexagonal silicene under tensile strain and its anomalous Poisson".Applied Physics Letter 104.8(2014):81902.

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