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Hurst's Exponent Determination for Radial Distribution Functions of In, Sn and In-40 wt%Sn Melt |
ZHOU Yong-Zhi1, LI Mei 1, GENG Hao-Ran1**, YANG Zhong-Xi1, SUN Chun-Jing2
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1School of Materials Science and Engineering University of Jinan, Jinan 250022
2Shandong Transport Vocational College, Weifang 261206
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Cite this article: |
ZHOU Yong-Zhi, LI Mei, GENG Hao-Ran et al 2011 Chin. Phys. Lett. 28 120505 |
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Abstract Hurst's exponent of radial distribution functions (RDFs) within the short-range scope of In, Sn and In-40 wt%Sn melts are determined by the rescaled range analysis method. Hurst's exponents H are between 0.94 and 0.97, which display long−range dependence. Within short-range scope, the number of particles from a reference particle belongs to fractional Brownian motion. After RDF serials are randomly scrambled, Hurst's exponents all dramatically dropped, which proves long-range dependence. H irregularly varies as the temperature rises, but the change tendency is not consistent with the correlation radius rc.
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Keywords:
05.45.Df
61.25.Mv
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Received: 26 July 2011
Published: 29 November 2011
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