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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.
Source PublicationApplied Physics Letter
2014-02-22
Volume104Issue:8Pages:81902
ISSN0003-6951
AbstractHere, 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.
KeywordRoot Fracture Dentine Ageing Biomechanics Nano-indentation Finite Element Analysis
Subject AreaPhysics
DOI10.1063/1.4866415
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000332619100037
Funding OrganizationY.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.
DepartmentLNM微结构计算力学(筹)
Classification一类
Citation statistics
Cited Times:52[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48784
Collection非线性力学国家重点实验室
Corresponding AuthorWei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Recommended Citation
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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