Matter and Radiation at Extremes, Volume. 5, Issue 3, 038101(2020)

Everything you always wanted to know about metallic hydrogen but were afraid to ask

Eugene Gregoryanz1...2,3,a), Cheng Ji2, Philip Dalladay-Simpson2, Bing Li2, Ross T. Howie2 and Ho-Kwang Mao2 |Show fewer author(s)
Author Affiliations
  • 1Centre for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
  • 2Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
  • 3Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
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    Figures & Tables(2)
    Proposed (artistic) P–T phase diagram of H2. Solid phase lines are a combination of static compression studies of solid hydrogen9–13 and dynamic compression studies of fluid deuterium.14,15 Dashed lines represent extrapolations of these combined results. The dark brown color of phases III and V at higher pressures suggests closing of the bandgap.
    Artistic representation of the gaseous and solid states of hydrogen under different pressures at room temperature (300 K): (a) gaseous molecular state; (b) phase I, with hcp structure; (c) phase IV, with mixed molecular and atomic state; (d) purely atomic and metallic state.
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    Eugene Gregoryanz, Cheng Ji, Philip Dalladay-Simpson, Bing Li, Ross T. Howie, Ho-Kwang Mao. Everything you always wanted to know about metallic hydrogen but were afraid to ask[J]. Matter and Radiation at Extremes, 2020, 5(3): 038101

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    Paper Information

    Category: High Pressure Physics and Materials Science

    Received: Jan. 22, 2020

    Accepted: Mar. 5, 2020

    Published Online: Nov. 25, 2020

    The Author Email: Gregoryanz Eugene (e.gregoryanz@ed.ac.uk)

    DOI:10.1063/5.0002104

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