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Comment on "High-Pressure Behavior of Hydrogen and Deuterium at Low Temperatures"
Alexander F Goncharov1, Yu A Freiman2
1Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road NW, Washington DC 20015, USA.
Physical Review Letters
|May 31, 2019
Abstract:
X.-D. Liu et al. [Phys. Rev. Lett. 119, 065301 (2017)PRLTAO0031-900710.1103/PhysRevLett.119.065301] report on the existence of a new unique solid phase of D_{2}, which makes the high-pressure low-temperature behavior distinct from H_{2}. Here, based on the analysis of their Raman data and phase transition theory, we show that the presented data do not support this claim.