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

Gregoryanz Eugene; Ji Cheng; Dalladay-Simpson Philip; Li Bing; Howie Ross T.; Mao Ho-Kwang

doi:10.1063/5.0002104

Volume 5 Issue 3

May 2020

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Gregoryanz Eugene, Ji Cheng, Dalladay-Simpson Philip, Li Bing, Howie Ross T., Mao Ho-Kwang. Everything you always wanted to know about metallic hydrogen but were afraid to ask[J]. Matter and Radiation at Extremes, 2020, 5(3): 038101. doi: 10.1063/5.0002104

Citation:

Gregoryanz Eugene, Ji Cheng, Dalladay-Simpson Philip, Li Bing, Howie Ross T., Mao Ho-Kwang. Everything you always wanted to know about metallic hydrogen but were afraid to ask[J]. Matter and Radiation at Extremes, 2020, 5(3): 038101. doi: 10.1063/5.0002104

Citation:

Gregoryanz Eugene, Ji Cheng, Dalladay-Simpson Philip, Li Bing, Howie Ross T., Mao Ho-Kwang. Everything you always wanted to know about metallic hydrogen but were afraid to ask[J]. Matter and Radiation at Extremes, 2020, 5(3): 038101. doi: 10.1063/5.0002104

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

doi: 10.1063/5.0002104

1.
Centre for Science at Extreme Conditions and School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
2.
Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
3.
Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China

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Corresponding author: a)Author to whom correspondence should be addressed: e.gregoryanz@ed.ac.uk
Received Date: 2020-01-22
Accepted Date: 2020-03-05

Available Online: 2020-05-01

Publish Date: 2020-05-15

Abstract

Abstract

The hydrogen molecule is made from the first and lightest element in the periodic table. When hydrogen gas is either compressed or cooled, it forms the simplest molecular solid. This solid exhibits many interesting and fundamental physical phenomena. It is believed that if the density of the solid is increased by compressing it to very high pressures, hydrogen will transform into the lightest known metal with very unusual and fascinating properties, such as room temperature superconductivity and/or superfluidity. In this article, we provide a critical look at the numerous claims of hydrogen metallization and the current experimental state of affairs.

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References(55)

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