title: Visual Observations of the Amorphous-Amorphous Transition in H2O Under Pressure.
abstract: The vapor-deposited low-density amorphous phase of H(2)O was directly compressed at 77 kelvin with a diamond-anvil cell, and the boundary between the low-density amorphous phase and the high-density amorphous phase was observed while the sample was warmed under compression. The transition from the low-density amorphous phase to the high-density amorphous phase was distinct and reversible in an apparently narrow pressure range at approximately 130 to approximately 150 kelvin, which provided experimental evidence for polymorphism in amorphous H(2)O.
authors.forename: O
authors.initials: O
authors.lastname: Mishima
authors.forename: K
authors.initials: K
authors.lastname: Takemura
authors.forename: K
authors.initials: K
authors.lastname: Aoki