Logarithmic Size-Dependent Melting Temperature of Nanoparticles

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	Logarithmic Size-Dependent Melting Temperature of Nanoparticles
	Liu, ZY; Sui, XH; Kang, K; Qin, SJ
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2015
卷号	119 期号:21 页码:11929-11933
通讯作者	Qin, SJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
英文摘要	This work describes the logarithmic term in the size-dependent melting temperature of nanoparticles. The Lindemann melting criterion and the thermal phonon contribution are intended primarily as a clear approach for our study of melting temperature. The ratio of the melting temperature (T-mn) of a nanoparticle to the bulk melting temperature (T-mb) is numerically evaluated up to the order of the inverse of the size L of a nanoparticle: T-mn/T-mb = 1 A/L. We show that the coefficient A is not a constant but has a logarithmic part. The logarithmic term is the dominate term in the factor A(L). Our investigation suggests the behavior of the size-dependent melting is T-mn/T-mb = 1 (B + C lnL)/(L- 2l(s)) where B and C are constant factors and ls is the number dimension of the surface layers reconstructed or premelted. The results present a challenge to reach a higher resolution in future thermal experiments in order to distinguish ln L/L behavior from the previously accepted pure 1/L behavior.
学科主题	Chemistry ; Science & Technology - Other Topics ; Materials Science
类目[WOS]	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
关键词[WOS]	SMALL PARTICLES ; AL MATRIX ; NANOCRYSTALS ; THERMODYNAMICS ; POINT ; TIN
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/20992]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Liu, ZY,Sui, XH,Kang, K,et al. Logarithmic Size-Dependent Melting Temperature of Nanoparticles[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2015,119(21):11929-11933.
APA	Liu, ZY,Sui, XH,Kang, K,&Qin, SJ.(2015).Logarithmic Size-Dependent Melting Temperature of Nanoparticles.JOURNAL OF PHYSICAL CHEMISTRY C,119(21),11929-11933.
MLA	Liu, ZY,et al."Logarithmic Size-Dependent Melting Temperature of Nanoparticles".JOURNAL OF PHYSICAL CHEMISTRY C 119.21(2015):11929-11933.