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A comparison of dynamic properties of a core-softened system of particles across glass transition, melting and random tiling formation
Physics and Chemistry of Liquids ( IF 1.2 ) Pub Date : 2019-12-02 , DOI: 10.1080/00319104.2019.1698043
Yu. D. Fomin 1, 2
Affiliation  

ABSTRACT Solid structures with different types of ordering (crystals, random tilings and glasses) are considered. We show that the short-range order structure of random tilings characterised by radial distribution functions looks very similar to the ones of glasses. However, the dynamical properties of random tilings look qualitatively identical to the ones of crystals. Because of this basing on radial distribution functions, only the system can be erroneously identified as glass or as random tiling. However, combining it with the dynamical properties, such as mean square displacement of stress autocorrelation function one can unambiguously distinguish glass and random tiling structure.

中文翻译:

玻璃化转变、熔化和随机平铺形成过程中颗粒核心软化系统的动态特性比较

摘要 考虑了具有不同排序类型(晶体、随机平铺和玻璃)的实体结构。我们表明,以径向分布函数为特征的随机平铺的短程有序结构看起来与眼镜非常相似。然而,随机平铺的动力学特性看起来与晶体的特性完全相同。由于此基于径向分布函数,只有系统会被错误地识别为玻璃或随机平铺。但是,将其与应力自相关函数的均方位移等动力学特性相结合,可以明确地区分玻璃和随机平铺结构。
更新日期:2019-12-02
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