Esteso V, Carretero-Palacios S, MacDowell L G, Fiedler Johannes, Parsons D F, Spallek F, Míguez H, Persson C, Buhmann Stefan Yoshi, Brevik I, Boström M
Multifunctional Optical Materials Group, Instituto de Ciencia de Materiales de Sevilla (Consejo Superior de Investigaciones Científicas - Universidad de Sevilla), Calle Américo Vespucio 49, 41092 Sevilla, Spain.
Phys Chem Chem Phys. 2020 May 28;22(20):11362-11373. doi: 10.1039/c9cp06836h. Epub 2020 May 6.
Considering ice-premelting on a quartz rock surface (i.e. silica) we calculate the Lifshitz excess pressures in a four layer system with rock-ice-water-air. Our calculations give excess pressures across (1) ice layer, (2) water layer, and (3) ice-water interface for different ice and water layer thicknesses. We analyse equilibrium conditions where the different excess pressures take zero value, stabilized in part by repulsive Lifshitz interactions. In contrast to previous investigations which considered varying thickness of only one layer (ice or water), here we present theory allowing for simultaneous variation of both layer thicknesses. For a given total thickness of ice and water, this allows multiple alternative equilibrium solutions. Consequently the final state of a system will depend on initial conditions and may explain variation in experimental measurements of the thicknesses of water and ice layers.
考虑石英岩表面（即二氧化硅）上的冰预融情况，我们计算了岩石 - 冰 - 水 - 空气四层系统中的 Lifshitz 过剩压力。我们的计算给出了不同冰和水层厚度下跨（1）冰层、（2）水层以及（3）冰 - 水界面的过剩压力。我们分析了不同过剩压力取零值的平衡条件，这些条件部分由排斥性的 Lifshitz 相互作用稳定。与之前仅考虑一层（冰或水）厚度变化的研究不同，这里我们提出了一种允许两层厚度同时变化的理论。对于给定的冰和水的总厚度，这允许有多种替代的平衡解。因此，系统的最终状态将取决于初始条件，并且这可能解释水层和冰层厚度实验测量中的变化。
