Relation between the High Density Phase and the Very-High Density Phase of Amorphous Solid Water

Abstract

It has been suggested that high-density amorphous (HDA) ice is a structurally arrested form of high-density liquid (HDL) water, while low-density amorphous (LDA) ice is a structurally arrested form of low-density liquid (LDL) water. Recent experiments and simulations have been interpreted to support the possibility of a second "distinct" high-density structural state, named very high-density amorphous (VHDA) ice, questioning the LDL-HDL hypothesis. We test this interpretation using extensive computer simulations, and find that VHDA is a more stable form of HDA and that in fact VHDA should be considered as the amorphous ice of the quenched HDL.

arXiv comment5 pages, 4 figs

References in corpus (2)

• Polyamorphism of ice at low temperatures from constant-pressure simulations
• A Potential Energy Landscape Study of the Amorphous-Amorphous Transformation in H${}_2$O

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• Phase Diagram of Amorphous Solid Water: Low-Density, High-Density, and Very-High-Density Amorphous Ices
• Structural Order in Glassy Water
• Low, high and very-high density forms of liquid water revealed by a medium-range order descriptor
• Structure of high-pressure supercooled and glassy water