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arXiv 1902.00698cond-mat.softcond-mat.stat-mech
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分子玻璃形成体的超Arrhenius行为

Super-Arrhenius behaviour of molecular glass formers

Ankit Singh, Yashwant Singh

摘要:

本文提出了一种由静态对关联函数计算分子玻璃形成体结构弛豫势垒的理论。的势垒高度示出增加由于增加的数量的稳定的债券的颗粒形成与它的邻居和能量的每个键作为液体移动到更深的过冷(超压缩)区域。我们提出了一个系统的硬球的结果,并比较计算值的结构弛豫时间与实验和模拟结果。

英文摘要:

A theory is developed to calculate values of the potential energy barriers to structural relaxation in molecular glass formers from the data of static pair correlation function. The barrier height is shown to increase due to increase in number of the stable bonds a particle forms with its neighbours and energy of each bond as liquids move deeper into the supercooled (super-compressed) region. We present results for a system of hard-spheres and compare calculated values of the structural relaxation time with experimental and simulation results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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