Synthesis of clathrate cerium superhydride CeH9 at 80-100 GPa with atomic hydrogen sublattice

Nilesh P. Salke; M. Mahdi Davari Esfahani; Youjun Zhang; Ivan A. Kruglov; Jianshi Zhou; Yaguo Wang; Eran Greenberg; Vitali B. Prakapenka; Jin Liu; Artem R. Oganov; Jung-Fu Lin

doi:10.1038/s41467-019-12326-y

Nature Communications (Oct 2019)

Synthesis of clathrate cerium superhydride CeH9 at 80-100 GPa with atomic hydrogen sublattice

Nilesh P. Salke,
M. Mahdi Davari Esfahani,
Youjun Zhang,
Ivan A. Kruglov,
Jianshi Zhou,
Yaguo Wang,
Eran Greenberg,
Vitali B. Prakapenka,
Jin Liu,
Artem R. Oganov,
Jung-Fu Lin

Affiliations

Nilesh P. Salke: Center for High Pressure Science & Technology Advanced Research (HPSTAR)
M. Mahdi Davari Esfahani: Department of Geosciences, Center for Materials by Design, and Institute for Advanced Computational Science, State University of New York, Stony Brook
Youjun Zhang: Institute of Atomic and Molecular Physics, Sichuan University
Ivan A. Kruglov: Department of Problems of Physics and Energetics, Moscow Institute of Physics and Technology
Jianshi Zhou: Department of Mechanical Engineering, The University of Texas at Austin
Yaguo Wang: Department of Mechanical Engineering, The University of Texas at Austin
Eran Greenberg: Center for Advanced Radiation Sources, University of Chicago
Vitali B. Prakapenka: Center for Advanced Radiation Sources, University of Chicago
Jin Liu: Center for High Pressure Science & Technology Advanced Research (HPSTAR)
Artem R. Oganov: Department of Problems of Physics and Energetics, Moscow Institute of Physics and Technology
Jung-Fu Lin: Department of Geological Sciences, The University of Texas at Austin

DOI: https://doi.org/10.1038/s41467-019-12326-y
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 10

Abstract

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Hydrogen-rich superhydrides are promising high-temperature superconductors which have been observed only at pressures above 170 GPa. Here the authors show that CeH9 can be synthesized at 80-100 GPa with laser heating, and is characterized by a clathrate structure with a dense 3-dimensional atomic hydrogen sublattice.

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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