论文标题
超冷的液体柜中热力学最大最大值的结构变化：一种类似水的情况
Structural changes across thermodynamic maxima in supercooled liquid tellurium: a water-like scenario
论文作者
论文摘要
液态多态性是一种有趣的现象，在几个单一组件系统中发现，最著名的是水。通过将液体TE超过130 K以上，并执行同时的小角度和广角X射线散射测量值，我们观察到其热力学反应函数在615 K左右，表明可能存在液体多态性。仔细观察基本的结构进化显示了冷却后中等范围的发展，最强烈的热力学最大值，我们将其归因于键 - 取向的秩序。尽管缺乏氢键和四氢体性，但我们的结果与水的结果之间的相似之处很大，但表明水样异常可能是具有竞争键和密度顺序的液体系统中的一般现象。
Liquid polymorphism is an intriguing phenomenon which has been found in a few single-component systems, the most famous being water. By supercooling liquid Te to more than 130 K below its melting point and performing simultaneous small-angle and wide-angle X-ray scattering measurements, we observe clear maxima in its thermodynamic response functions around 615 K, suggesting the possible existence of liquid polymorphism. A close look at the underlying structural evolution shows the development of intermediate-range order upon cooling, most strongly around the thermodynamic maxima, which we attribute to bond-orientational ordering. The striking similarities between our results and those of water, despite the lack of hydrogen-bonding and tetrahedrality in tellurium, indicate that water-like anomalies may be a general phenomenon among liquid systems with competing bond- and density-ordering.
