结晶驱动力沿液相同晶型的变化
Variation along liquid isomorphs of the driving force for crystallization
摘要：
我们研究了过冷液体结晶的驱动力沿同晶型曲线的变化，沿该曲线的结构和动力学是不变的。变化是弱的，可以准确地预测的Lennard-Jones流体使用最近开发的形式主义和数据在参考温度。更一般的分析允许解释分子液体，如邻苯二甲酸二甲酯和吲哚美辛的实验数据，并表明，在这些情况下的同晶标度指数$γ$是密度的增加函数，虽然这不能在粘度或弛豫时间的测量中看到。
英文摘要：
We investigate the variation of the driving force for crystallization of a supercooled liquid along isomorphs, curves along which structure and dynamics are invariant. The variation is weak, and can be predicted accurately for the Lennard-Jones fluid using a recently developed formalism and data at a reference temperature. More general analysis allows interpretation of experimental data for molecular liquids such as dimethyl phthalate and indomethacin, and suggests that the isomorph scaling exponent $γ$ in these cases is an increasing function of density, although this cannot be seen in measurements of viscosity or relaxation time.
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