Stable planar single-layer hexagonal silicene under tensile strain and its anomalous Poisson
文献类型：期刊论文
| 作者 | Wang BL(王宝林) ; Wu JT(吴江涛); Gu XK; Yin HQ; Wei YJ(魏宇杰); Yang RG; Dresselhaus M
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| 刊名 | Applied Physics Letter
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| 出版日期 | 2014-02-22 |
| 卷号 | 104期号:8页码:81902 |
| 通讯作者邮箱 | yujie_wei@lnm.imech.ac.cn; ronggui.yang@colorado.edu |
| 关键词 | Root fracture Dentine Ageing Biomechanics Nano-indentation Finite element analysis |
| ISSN号 | 0003-6951 |
| 产权排序 | [Wang, Baolin; Wu, Jiangtao; Yin, Hanqing; Wei, Yujie] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China; [Gu, Xiaokun; Yang, Ronggui] Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA; [Dresselhaus, Mildred] MIT, Dept Phys, Cambridge, MA 02139 USA; [Dresselhaus, Mildred] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA |
| 通讯作者 | Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
| 合作状况 | 国际 |
| 中文摘要 | 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. |
| 学科主题 | Physics |
| 分类号 | 一类 |
| 收录类别 | SCI ; EI |
| 资助信息 | 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. |
| 原文出处 | http://dx.doi.org/10.1063/1.4866415 |
| 语种 | 英语 |
| WOS记录号 | WOS:000332619100037 |
| 公开日期 | 2014-05-09 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/48784]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 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.,...&Dresselhaus M.(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. |
入库方式： OAI收割
来源：力学研究所
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