The influence of surface boundary conditions on the phonon contribution to the melting temperature of nanoparticles

doi:http://dx.doi.org/10.1016/j.physb.2015.11.003

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	The influence of surface boundary conditions on the phonon contribution to the melting temperature of nanoparticles
	Xu, YY; Kang, K; Qin, SJ; Xu, YY (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
刊名	PHYSICA B-CONDENSED MATTER
	2016
卷号	481 页码:133-136
关键词	Melting Temperature Nano-particle Surface Boundary Condition Upper Bound
DOI	http://dx.doi.org/10.1016/j.physb.2015.11.003
英文摘要	The phonon thermal contribution to the melting temperature of nano-particles is inspected. Unlike in periodic boundary condition, under a general boundary condition the integration volume of low energy phonon for a nano-particle is more complex. We estimate the size-dependent melting temperature through the phase shift of the low energy phonon mode acquired by its scattering on boundary surface. A nano-particle can have either a rising or a decreasing melting temperature due to the boundary condition effect, and we found that an upper melting temperature bound exists for a nano-particle in various environments. Moreover, the melting temperature under a fixed boundary condition sets this upper bound. (C) 2015 Elsevier B.V. All rights reserved.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21803]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Xu, YY (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Xu, YY,Kang, K,Qin, SJ,et al. The influence of surface boundary conditions on the phonon contribution to the melting temperature of nanoparticles[J]. PHYSICA B-CONDENSED MATTER,2016,481:133-136.
APA	Xu, YY,Kang, K,Qin, SJ,&Xu, YY .(2016).The influence of surface boundary conditions on the phonon contribution to the melting temperature of nanoparticles.PHYSICA B-CONDENSED MATTER,481,133-136.
MLA	Xu, YY,et al."The influence of surface boundary conditions on the phonon contribution to the melting temperature of nanoparticles".PHYSICA B-CONDENSED MATTER 481(2016):133-136.