J. Phys. Soc. Jpn. 89, 051012 (2020) [7 Pages]
SPECIAL TOPICS: Frontier of Hydrogen Science

Metal Hydrides: Epitaxial Growth and Electronic Properties

+ Affiliations
1School of Materials and Chemical Technology, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan2PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan3WPI-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8579, Japan4New Industry Creation Hatchery Center (NICHe), Tohoku University, Sendai 980-8579, Japan

Reports of superconductivity at temperatures above 200 K in high-pressure hydrogen sulfide (H2S) had generated great interest in metal hydrides and their physical properties. For the progress in both fundamental understanding and device application of metal hydrides, studies using single crystals or epitaxial thin films are essential. However, to date, a few metal hydride single crystals and epitaxial thin films have been fabricated, and both fundamental and applied research on these materials remain elusive compared with oxides and nitrides. This article reviews the recent body of work that aims to establish a metal-hydride epitaxial thin film synthesis technology, and to search for new metal-hydride functionalities; it focuses on the epitaxial growth and properties of metal hydrides.

©2020 The Physical Society of Japan

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