CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Local atomic structure inheritance in Ag50Sn50 melt
Bai, YW; Bian, XF; Qin, JY; Hu, LN; Yang, JF; Zhang, K; Zhao, XL; Zhang, S; Huang, YY; Yang, CC;
AbstractLocal structure inheritance signatures were observed during the alloying process of the Ag50Sn50 melt, using high-temperature X-ray diffraction and ab initio molecular dynamics simulations. The coordination number N-m around Ag atom is similar in the alloy and in pure Ag melts (N-m similar to 10), while, during the alloying process, the local structure around Sn atoms rearranges. Sn-Sn covalent bonds were substituted by Ag-Sn chemical bonds, and the total coordination number around Sn increases by about 70% as compared with those in the pure Sn melt. Changes in the electronic structure of the alloy have been studied by Ag and Sn K-edge X-ray absorption spectroscopy, as well as by calculations of the partial density of states. We propose that a leading mechanism for local structure inheritance in Ag50Sn50 is due to s-p dehybridization of Sn and to the interplay between Sn-s and Ag-d electrons. (C) 2014 AIP Publishing LLC.
KeywordAbsorption Fine-structure Liquid Alloys Heredity Exafs Oxidation Glasses Xanes Fe Sn
Indexed BySCI
WOS IDWOS:000331210800021
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Bai, YW,Bian, XF,Qin, JY,et al. Local atomic structure inheritance in Ag50Sn50 melt[J]. JOURNAL OF APPLIED PHYSICS,2014,115(4).
APA Bai, YW.,Bian, XF.,Qin, JY.,Hu, LN.,Yang, JF.,...& atomic structure inheritance in Ag50Sn50 melt.JOURNAL OF APPLIED PHYSICS,115(4).
MLA Bai, YW,et al."Local atomic structure inheritance in Ag50Sn50 melt".JOURNAL OF APPLIED PHYSICS 115.4(2014).
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