Two-year progress in experimental investigation on high-temperature superconductivity of sulfur hydride. (21st April 2017)

• Record Type: Journal Article
• Authors: Einaga, Mari; Sakata, Masafumi; Masuda, Akiyoshi; Nakao, Harushige; Shimizu, Katsuya; Drozdov, Alexander; Eremets, Mikhail; Kawaguchi, Saori; Hirao, Naohisa; Ohishi, Yasuo
• Is Part Of: Japanese journal of applied physics. Volume 56:Number 5(2017)Supplement 3
• Publication Date: 2017-04-21
• Subjects: Physics -- Periodicals; 621.05
• DOI: 10.7567/JJAP.56.05FA13
• Languages: English
• ISSNs: 0021-4922

Abstract

Abstract: The cooperation between theoretical and experimental investigations broke the record for the superconducting critical temperature T c in hydrogen sulfide at a high pressure at the end of 2014. Surprisingly, the material improved its highest T c by more than 30 K and showed conventional superconductivity, which can be explained by the Bardeen–Cooper–Schrieffer theory. Recent experimental works have gradually clarified the instability of the H2 S molecule and the pathway to the high- T c phase with a three-dimensional conductive structure unlike high- T c superconductors thus far. In this review, the present progress on a sulfur hydride system is reported.