Crystal Structure of 200 K-Superconducting Phase of Sulfur Hydride System

Mari Einaga; Masafumi Sakata; Takahiro Ishikawa; Katsuya Shimizu; Mikhail Eremets; Alexander Drozdov; Ivan Troyan; Naohisa Hirao; Yasuo Ohishi

doi:10.1038/nphys3760

arXiv · 1509.03156

Crystal Structure of 200 K-Superconducting Phase of Sulfur Hydride System

Mari Einaga·Masafumi Sakata·Takahiro Ishikawa·Katsuya Shimizu·Mikhail Eremets·Alexander Drozdov·Ivan Troyan·Naohisa Hirao·Yasuo Ohishi

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Abstract

This article reports the experimentally clarified crystal structure of a recently discovered sulfur hydride in high temperature superconducting phase which has the highest critical temperature Tc over 200 K which has been ever reported. For understanding the mechanism of the high superconductivity, the information of its crystal structure is very essential. Herein we have carried out the simultaneous measurements electrical resistance and synchrotron x-ray diffraction under high pressure, and clearly revealed that the hydrogen sulfide, H2S, decomposes to H3S and its crystal structure has body-centered cubic symmetry in the superconducting phase.

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Mari Einaga, Masafumi Sakata, Takahiro Ishikawa, Katsuya Shimizu, Mikhail Eremets, Alexander Drozdov, Ivan Troyan, Naohisa Hirao, Yasuo Ohishi. 2015-09-10. Crystal Structure of 200 K-Superconducting Phase of Sulfur Hydride System. https://doi.org/10.1038/nphys3760

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