Synthesis of molecular metallic barium superhydride: pseudocubic BaH12

Wuhao Chen; Dmitrii V. Semenok; Alexander G. Kvashnin; Xiaoli Huang; Ivan A. Kruglov; Michele Galasso; Hao Song; Defang Duan; Alexander F. Goncharov; Vitali B. Prakapenka; Artem R. Oganov; Tian Cui

doi:10.1038/s41467-020-20103-5

Nature Communications (Jan 2021)

Synthesis of molecular metallic barium superhydride: pseudocubic BaH12

Wuhao Chen,
Dmitrii V. Semenok,
Alexander G. Kvashnin,
Xiaoli Huang,
Ivan A. Kruglov,
Michele Galasso,
Hao Song,
Defang Duan,
Alexander F. Goncharov,
Vitali B. Prakapenka,
Artem R. Oganov,
Tian Cui

Affiliations

Wuhao Chen: State Key Laboratory of Superhard Materials, College of Physics, Jilin University
Dmitrii V. Semenok: Skolkovo Institute of Science and Technology, Skolkovo Innovation Center
Alexander G. Kvashnin: Skolkovo Institute of Science and Technology, Skolkovo Innovation Center
Xiaoli Huang: State Key Laboratory of Superhard Materials, College of Physics, Jilin University
Ivan A. Kruglov: Moscow Institute of Physics and Technology
Michele Galasso: Skolkovo Institute of Science and Technology, Skolkovo Innovation Center
Hao Song: State Key Laboratory of Superhard Materials, College of Physics, Jilin University
Defang Duan: State Key Laboratory of Superhard Materials, College of Physics, Jilin University
Alexander F. Goncharov: Earth and Planets Laboratory, Carnegie Institution of Washington
Vitali B. Prakapenka: Center for Advanced Radiation Sources, The University of Chicago
Artem R. Oganov: Skolkovo Institute of Science and Technology, Skolkovo Innovation Center
Tian Cui: State Key Laboratory of Superhard Materials, College of Physics, Jilin University

DOI: https://doi.org/10.1038/s41467-020-20103-5
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 9

Abstract

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Metallization of pure hydrogen via overlapping of electronic bands requires high pressure above 3 Mbar. Here the authors study the Ba-H system and discover a unique superhydride BaH12 that contains molecular hydrogen, which demonstrates metallic properties and superconductivity below 1.5 Mbar.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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