Correlation of atomic packing with the boson peak in amorphous alloys

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	Correlation of atomic packing with the boson peak in amorphous alloys
	Yang, W. M. ; Liu, H. S. ; Liu, X. J. ; Chen, G. X. ; Dun, C. C. ; Zhao, Y. C. ; Man, Q. K. ; Chang, C. T. ; Shen, B. L. ; Inoue, A. ; Li, R. W. ; Jiang, J. Z.
刊名	JOURNAL OF APPLIED PHYSICS
	2014
卷号	116 期号:12
中文摘要	Boson peaks (BP) have been observed from phonon specific heats in 10 studied amorphous alloys. Two Einstein-type vibration modes were proposed in this work and all data can be fitted well. By measuring and analyzing local atomic structures of studied amorphous alloys and 56 reported amorphous alloys, it is found that (a) the BP originates from local harmonic vibration modes associated with the lengths of short-range order (SRO) and medium-range order (MRO) in amorphous alloys, and (b) the atomic packing in amorphous alloys follows a universal scaling law, i.e., the ratios of SRO and MRO lengths to solvent atomic diameter are 3 and 7, respectively, which exact match with length ratios of BP vibration frequencies to Debye frequency for the studied amorphous alloys. This finding provides a new perspective for atomic packing in amorphous materials, and has significant implications for quantitative description of the local atomic orders and understanding the structure-property relationship. (C) 2014 AIP Publishing LLC.
公开日期	2015-09-20
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/11748]
专题	宁波材料技术与工程研究所_2014专题
推荐引用方式 GB/T 7714	Yang, W. M.,Liu, H. S.,Liu, X. J.,et al. Correlation of atomic packing with the boson peak in amorphous alloys[J]. JOURNAL OF APPLIED PHYSICS,2014,116(12).
APA	Yang, W. M..,Liu, H. S..,Liu, X. J..,Chen, G. X..,Dun, C. C..,...&Jiang, J. Z..(2014).Correlation of atomic packing with the boson peak in amorphous alloys.JOURNAL OF APPLIED PHYSICS,116(12).
MLA	Yang, W. M.,et al."Correlation of atomic packing with the boson peak in amorphous alloys".JOURNAL OF APPLIED PHYSICS 116.12(2014).