Comment on "Evidence of a first-order phase transition to metallic hydrogen"

Ross T. Howie, Philip Dalladay-Simpson, Eugene Gregoryanz

Research output: Contribution to journalEditorialpeer-review


A recent article by Zaghoo et al. [Phys. Rev. B 93, 155128 (2016)] presented high-pressure high-temperature optical experiments claiming the observation of a first-order transition to atomic liquid metallic hydrogen. Here, we demonstrate that the experimental evidence presented is unsubstantial for such a claim. Furthermore, the claimed results and conclusions contradict previously published works, including those by the same research group.

Original languageEnglish
Article number157102
Number of pages2
JournalPhysical Review B
Issue number15
Publication statusPublished - 4 Oct 2017

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