Premelting layer during ice growth: role of clusters
arXiv:2111.14146 · doi:10.1039/D2CP00412G
Abstract
The premelting plays an important role in ice growth, but there is a significant gap in our knowledge between the atomistic premelting surface structure and the macroscopic growth mechanism. In this work, using large-scale molecular dynamics simulation, we reveal the existence of clusters on premelting surface, as an intermediate feature bridging the gap. We show the spontaneous formation and evolution of clusters, and they form a stable distribution determined by the growth rate. We demonstrate how this stable distribution is related to the growth mode of ice, connected by the growth of clusters. We come to a bilayer-by-bilayer growth mode under simulation-reachable high growth rates, but another mechanism, namely "cluster stacking", is speculated to exist at lower growth rates. Our work builds a connection between the microscopic structure of premelting layer and the macroscopic growth of ice, making a step forward to the full understanding of premelting and ice growth.
arXiv commentmain article: 16 pages, 6 figures; supplementary information: 8 pages, 5 figures; 2022/1/10: update reference list
References in corpus (7)
- Global transition path search for dislocation formation in Ge on Si(001)
- The thickness of a liquid layer on the free surface of ice as obtained from computer simulation
- Premelting, fluctuations and coarse-graining of water-ice interfaces
- How ice grows from premelting films and water droplets
- Premelting-Induced Smoothening of the Ice-Vapor Interface
- Rounded Layering Transitions on the Surface of Ice
- Fluctuation spectroscopy of surface melting of ice without, and with impurities