Following the Crystallization of Amorphous Ice after Ultrafast Laser Heating

• Published in: The journal of physical chemistry. B Vol. 126; no. 11; pp. 2299 - 2307
• Main Authors: Ladd-Parada, Marjorie, Amann-Winkel, Katrin, Kim, Kyung Hwan, Späh, Alexander, Perakis, Fivos, Pathak, Harshad, Yang, Cheolhee, Mariedahl, Daniel, Eklund, Tobias, Lane, Thomas J, You, Seonju, Jeong, Sangmin, Weston, Matthew, Lee, Jae Hyuk, Eom, Intae, Kim, Minseok, Park, Jaeku, Chun, Sae Hwan, Nilsson, Anders
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 24.03.2022
• Subjects: B: Soft Matter, Fluid Interfaces, Colloids, Polymers, and Glassy Materials; Crystallization; Diffraction; Heating; Ice; INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Lasers; Liquids; Nucleation; Scattering; Thermodynamics
• ISSN: 1520-6106; 1520-5207; 1520-5207
• DOI: 10.1021/acs.jpcb.1c10906

Using time-resolved wide-angle X-ray scattering, we investigated the early stages (10 μs–1 ms) of crystallization of supercooled water, obtained by the ultrafast heating of high- and low-density amorphous ice (HDA and LDA) up to a temperature T = 205 K ± 10 K. We have determined that the crystallizing phase is stacking disordered ice (I sd), with a maximum cubicity of χ = 0.6, in agreement with predictions from molecular dynamics simulations at similar temperatures. However, we note that a growing small portion of hexagonal ice (I h) was also observed, suggesting that within our timeframe, I sd starts annealing into I h. The onset of crystallization, in both amorphous ice, occurs at a similar temperature, but the observed final crystalline fraction in the LDA sample is considerably lower than that in the HDA sample. We attribute this discrepancy to the thickness difference between the two samples.