Surface effect on resonant properties of nanowires predicted by an elastic theory for nanomaterials

doi:10.1063/1.4927290

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	Surface effect on resonant properties of nanowires predicted by an elastic theory for nanomaterials
	Yao Y(姚寅); Chen SH(陈少华); Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
发表期刊	JOURNAL OF APPLIED PHYSICS
	2015-07-28
卷号	118 期号:4 页码:44303
ISSN	0021-8979
摘要	A recently developed continuum theory considering surface effect in nanomaterials is adopted to investigate the resonant properties of nanowires with different boundary conditions in the present paper. The main feature of the adopted theory is that the surface effect in nanomaterials is characterized by the surface energy density of the corresponding bulk materials and the surface relaxation parameter in nanoscale. Based on a fixed-fixed beam model and a cantilever one, the governing equation of resonant frequency for corresponding nanowires is obtained. Numerical calculation of the fundamental resonant frequency is carried out, the result of which is well consistent with the existing numerical ones. Comparing to the result predicted by the conventionally structural dynamics, the resonant frequency of a fixed-fixed nanowire is improved, while that of a cantilever nanowire is weakened due to the surface effect. Both a decreasing characteristic size (height or diameter) and an increasing aspect ratio could further enhance the varying trend of resonant properties for both kinds of nanowires. The present result should be helpful for the design of nano-devices and nanostructures related to nanowires. (C) 2015 AIP Publishing LLC.
学科领域	Physics
DOI	10.1063/1.4927290
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000358928000032
WOS研究方向	Physics
WOS类目	Physics, Applied
项目资助者	NSFC [11372317, 11125211] ; Nano-project [2012CB937500] ; CAS/SAFEA International Partnership Program for Creative Research Teams
课题组名称	LNM仿生材料与固体的微尺度力学
论文分区	一类/力学重要期刊
引用统计	被引频次：27[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/311007/55322
专题	非线性力学国家重点实验室
通讯作者	Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Yao Y,Chen SH,Chen, SH . Surface effect on resonant properties of nanowires predicted by an elastic theory for nanomaterials[J]. JOURNAL OF APPLIED PHYSICS,2015,118,4,:44303.
APA	Yao Y,Chen SH,&Chen, SH .(2015).Surface effect on resonant properties of nanowires predicted by an elastic theory for nanomaterials.JOURNAL OF APPLIED PHYSICS,118(4),44303.
MLA	Yao Y,et al."Surface effect on resonant properties of nanowires predicted by an elastic theory for nanomaterials".JOURNAL OF APPLIED PHYSICS 118.4(2015):44303.

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