| 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.
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| Source Publication | Applied Physics Letter
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| 2014-02-22 | |
| Volume | 104Issue:8Pages:81902 |
| ISSN | 0003-6951 |
| Abstract | 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. |
| Keyword | Root Fracture Dentine Ageing Biomechanics Nano-indentation Finite Element Analysis |
| Subject Area | Physics |
| DOI | 10.1063/1.4866415 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000332619100037 |
| Funding Organization | 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. |
| Department | LNM微结构计算力学（筹） |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/48784 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Wei, 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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