Pressure amorphized ices--an atomistic perspective

Physical Chemistry Chemical Physics : PCCP
John S Tse, Dennis D Klug

Abstract

We offer our viewpoint on the nature of amorphous ices produced by pressurization of crystalline ice Ih and the inter-relationship between them from an atomistic perspective. We argue that the transformation of high density amorphous (HDA) ice from crystalline ice is due to a mechanical process arising from the instability of the ice Ih structure. The densification of HDA upon thermal annealing under pressure is a relaxation process. The conversion of the densified amorphous ice to a lower density form (LDA) upon the release of pressure can be attributed to a similar process. It is speculated that amorphous ices are metastable frustrated structures due to the large activation barriers associated with proton reorientation in the formation of the underlying stable crystalline ice polymorphs.

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Citations

Mar 25, 2014·The Journal of Chemical Physics·Janet ChiuNicolas Giovambattista
Aug 9, 2016·The Journal of Chemical Physics·Renzhong LiLimei Xu
Apr 16, 2019·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Daniel MariedahlKatrin Amann-Winkel
May 24, 2019·Nature·Chris A TulkDennis D Klug
Nov 17, 2019·The Journal of Chemical Physics·A P HoltC M Roland
Jan 18, 2018·Physical Review Letters·Chuanlong LinGuoyin Shen
Jun 28, 2017·Proceedings of the National Academy of Sciences of the United States of America·Fivos PerakisAnders Nilsson
Jun 4, 2019·The Journal of Chemical Physics·Paulo H B Brant CarvalhoUlrich Häussermann
May 28, 2019·Nature·John S Tse
Oct 10, 2020·The Journal of Chemical Physics·Hajime Tanaka
Feb 18, 2015·The Journal of Physical Chemistry. B·Ove Andersson, Yasuhiro Nakazawa
Aug 19, 2015·The Journal of Physical Chemistry Letters·Samuele FanettiRoberto Bini
May 20, 2016·Chemical Reviews·Katrin Amann-WinkelLawrie Skinner
Oct 1, 2020·The Journal of Physical Chemistry. B·Hongyi XuKatrin Amann-Winkel

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