预融引起的冰-汽界面的平滑化
Premelting-Induced Smoothening of the Ice-Vapor Interface
摘要:
我们进行计算机模拟的准液体层的冰形成在冰Ih-液体-蒸汽三相点的水的冰-蒸汽界面。我们的研究表明,两个不同的表面界定膜行为在小波长的原子粗糙和独立的冰-水和水-蒸汽界面。然而,对于长波长,两个表面耦合,大规模的平行波动被抑制,并且冰-蒸汽界面变得光滑。我们的研究结果可以帮助解释冰微晶的复杂形态。
英文摘要:
We perform computer simulations of the quasiliquid layer of ice formed at the ice-vapor interface close to the ice Ih-liquid-vapor triple point of water. Our study shows that the two distinct surfaces bounding the film behave at small wavelengths as atomically rough and independent ice-water and water-vapor interfaces. For long wavelengths, however, the two surfaces couple, large scale parallel fluctuations are inhibited, and the ice-vapor interface becomes smooth. Our results could help explain the complex morphology of ice crystallites.
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