Bending-induced extension in two-dimensional crystals

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	Bending-induced extension in two-dimensional crystals
	Pan DX(潘斗星); Li Y; Wang ZQ(王自强); Guo WL; Wang ZQ(王自强)
刊名	ACTA MECHANICA SINICA
	2017
通讯作者邮箱	tcwang@imech.ac.cn ; wlguo@nuaa.edu.cn
卷号	33 期号:1 页码:71-76
ISSN号	0567-7718
通讯作者	Wang, TC (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. ; Guo, WL (reprint author), Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Peoples R China. ; Guo, WL (reprint author), Nanjing Univ Aeronaut & Astronaut, Key Lab Intelligent Nano Mat & Devices MOE, Nanjing 210016, Peoples R China.
产权排序	[Pan, Douxing; Wang, Tzu-Chiang] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; [Pan, Douxing] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Li, Yao; Guo, Wanlin] Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Peoples R China; [Li, Yao; Guo, Wanlin] Nanjing Univ Aeronaut & Astronaut, Key Lab Intelligent Nano Mat & Devices MOE, Nanjing 210016, Peoples R China
中文摘要	We find by ab initio simulations that significant overall tensile strain can be induced by pure bending in a wide range of two-dimensional crystals perpendicular to the bending moment, just like an accordion being bent to open. This bending-induced tensile strain increases in a power law with bent curvature and can be over 20% in monolayered black phosphorus and transition metal dichalcogenides at a moderate curvature of but more than an order weaker in graphene and hexagon boron nitride. This accordion effect is found to be a quantum mechanical effect raised by the asymmetric response of chemical bonds and electron density to the bending curvature.
分类号	二类
类目[WOS]	Engineering, Mechanical ; Mechanics
研究领域[WOS]	Engineering ; Mechanics
关键词[WOS]	Monolayer black phosphorus ; Bending to extension ; Accordion effect ; Density functional theory
收录类别	SCI ; EI ; CSCD
原文出处	http://dx.doi.org/10.1007/s10409-016-0602-2
语种	英语
WOS记录号	WOS:000394153000007
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/60099]
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	Pan DX,Li Y,Wang ZQ,et al. Bending-induced extension in two-dimensional crystals[J]. ACTA MECHANICA SINICA,2017,33(1):71-76.
APA	潘斗星,Li Y,王自强,Guo WL,&Wang ZQ.(2017).Bending-induced extension in two-dimensional crystals.ACTA MECHANICA SINICA,33(1),71-76.
MLA	潘斗星,et al."Bending-induced extension in two-dimensional crystals".ACTA MECHANICA SINICA 33.1(2017):71-76.