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arXiv 2008.00858cond-mat.softcond-mat.stat-mechphysics.chem-ph
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Lennard-Jones系统在液-固相变附近的声速

Sound velocities of Lennard-Jones systems near the liquid-solid phase transition

Sergey Khrapak

摘要:

利用可加性原理计算了Lennard-Jones体系在液固共存时的纵向和横向声速。结果表明,同意以及从它们的关系到过剩能量和压力的“精确”的值。一些后果,特别是,在林德曼的熔化规则和斯托克斯-爱因斯坦之间的自扩散和粘度系数的关系的上下文中进行了讨论。与现有的实验数据比较固体氩在熔化条件下的声速。

英文摘要:

Longitudinal and transverse sound velocities of Lennard-Jones systems are calculated at the liquid-solid coexistence using the additivity principle. The results are shown to agree well with the ``exact'' values obtained from their relations to excess energy and pressure. Some consequences, in particular, in the context of the Lindemann's melting rule and Stokes-Einstein relation between the self-diffusion and viscosity coefficients are discussed. Comparison with available experimental data on the sound velocities of solid argon at melting conditions is provided.

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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