| Gaussian peaks decomposing of simple liquids' RDF |
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| 作者姓名： | 王伟民 边秀房 秦敬玉 张林 叶以富 |
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| 作者单位： | College of Materials Science and Technology，Shandong University of Technology，College of Materials Science and Technology，Shandong University of Technology，College of Materials Science and Technology，Shandong University of Technology，College of Materials Science and Technology，Shandong University of Technology，College of Materials Science and Technology，Shandong University of Technology Jinan 250061，China，Jinan 250061，China，Jinan 250061，China，Jinan 250061，China，Jinan 250061，China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 59671046). |
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| 摘 要： | According to feasibility of Gaussian peaks decomposing distribution function (DF) 4πrρ(r), radial distribution function (RDF) 4πr~2ρ(r) of simple liquids also is possibly decomposed into Gaussian peaks with r in the size of several atoms. Experimental structure parameters of pure liquid Al and Si were obtained by θ-θ X-ray diffraction measurements and following data processing. Based on Gaussian decomposing liquid aluminun's DF 4πrρ(r), liquid aluminum and silicon's radial distribution function (RDF) 4πr~2ρ(r), it is shown that RDF of simple liquids is able to be decomposed in Gaussian function, compared with decomposing of DF, supplying more physical meaning and better indicating the short range order of liquids, whicb draws a clearer structure picture of simple liquids.
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Gaussian peaks decomposing of simple liquids’ RDF |
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| Weimin Wang,Xiufang Bian,Jingyu Qin,Lin Zhang,Yifu Ye.Gaussian peaks decomposing of simple liquids' RDF[J].Science in China(Technological Sciences),1999,42(6):631-636. |
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| Authors: | Weimin Wang Xiufang Bian Jingyu Qin Lin Zhang Yifu Ye |
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| Affiliation: | (1) College of Materials Science and Technology, Shandong University of Technology, 250061 Jinan, China |
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| Abstract: | According to feasibility of Gaussian peaks decomposing distribution function (DF) 4πrρ(r), radial distribution function (RDF) 4πr
2ρ(r) of simple liquids also is possibly decomposed into Gaussian peaks withr in the size of several atoms. Experimental structure parameters of pure liquid Al and Si were obtained by θ-θ X-ray diffraction
measurements and following data processing. Based on Gaussian decomposing liquid aluminum’s DF 4πrρ(r), liquid aluminum and silicon’s radial distribution function (RDF) 4πr
2ρ(r), it is shown that RDF of simple liquids is able to be decomposed in Gaussian function, compared with decomposing of DF,
supplying more physical meaning and better indicating the short range order of liquids, which draws a clearer structure picture
of simple liquids.
Project supported by the National Natural Science Foundation of China (Grant No. 59671046). |
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| Keywords: | simple liquids RDF X-ray diffraction Gaussian peaks decomposing |
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