期刊
CRYSTAL GROWTH & DESIGN
卷 20, 期 9, 页码 5903-5907出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.cgd.0c00602
关键词
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资金
- Japan Society for the Promotion of Science (JSPS) Kakenhi [JP17H05216, JP19H02596, JP19H04689, JP18H03876, JP18H05514]
- Japan Science and Technology Agency-Precursory Research for Embryonic Science and Technology (JST-PRESTO), Japan [JPMJPR17N6]
- JSTCore Research for Evolutional Science and Technology (CREST) [JPMJCR1523]
- Institute for Materials Research, Tohoku University [18K0095, 19K0060]
This paper reports the epitaxial growth of EuH2 thin films with an.-scan full width at half-maximum of 0.07 degrees, the smallest value for metal hydride thin films reported so far. The thin films were deposited on yttria-stabilized ZrO2 (111) substrates using reactive magnetron sputtering. The magnetization measurement showed that the saturation magnetization is similar to 7 mu B/Eu atom, indicating that the EuHx films are nearly stoichiometric (x approximate to 2.0) and that the Curie temperature is similar to 20 K. The optical measurements showed a bandgap of similar to 1.81 eV. These values are similar to those previously reported for bulk EuH2. This study paves the way for the application of metal hydrides in the field of electronics through the fabrication of high-quality metal hydride epitaxial thin films.
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