Compression of Ice to 210 Gigapascals: Infrared Evidence for a Symmetric Hydrogen-Bonded Phase

@article{Goncharov1996CompressionOI,
  title={Compression of Ice to 210 Gigapascals: Infrared Evidence for a Symmetric Hydrogen-Bonded Phase},
  author={Alexander F. Goncharov and Viktor V. Struzhkin and Maddury Somayazulu and Russell J. Hemley and Ho-kwang Mao},
  journal={Science},
  year={1996},
  volume={273},
  pages={218 - 220}
}
Protonated and deuterated ices (H2O and D2O) compressed to a maximum pressure of 210 gigapascals at 85 to 300 kelvin exhibit a phase transition at 60 gigapascals in H2O ice (70 gigapascals in D2O ice) on the basis of their infrared reflectance spectra determined with synchrotron radiation. The transition is characterized by soft-mode behavior of the ν3 O-H or O-D stretch below the transition, followed by a hardening (positive pressure shift) above it. This behavior is interpreted as the… 

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TLDR
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