Development and mechanism elucidation of oxide half-metal with the transition temperature higher than 600 K
| Project/Area Number |
16H04501
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
YAMAURA KAZUNARI 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, グループリーダー (70391216)
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| Co-Investigator(Kenkyū-buntansha) |
辻本 吉廣 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主任研究員 (50584075)
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
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| Keywords | ペロブスカイト / 高圧合成 / 2重ペロブスカイト / ２重ペロブスカイト / Ca2MnOsO6 / オスミウム酸化物 / ハーフメタル / 遷移金属酸化物 |
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| Outline of Final Research Achievements |
With the search for new material seeds characterized by the behavior of 5d electrons, we aimed to improve half-metal functionality on the background of the extended electron orbitals, strong spin-orbit interaction, and remarkable relativistic effects inherent to 5d electrons. As a result, although it did not reach to the synthesis of the half metal of the oxide over 600 K which was aimed at, the new substance synthesized in the process of research showed unique physical properties and we published the results through the conference presentation and the paper presentation.
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| Academic Significance and Societal Importance of the Research Achievements |
本課題で新規合成された物質は、特異な５ｄ電子の振舞いを特徴とし、さらに磁気転移温度の向上や巨大な保磁力など有用な機能性向上を示した。これらの発現機構の解明は実用レベルのハーフメタル酸化物のマテリアルデザインの早期確立に資する。
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Report
(4 results)
Research Products
(54 results)
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[Journal Article] A layered wide-gap oxyhalide semiconductor with an infinite ZnO2 square planar sheet: Sr2ZnO2Cl22017
Author(s)
Yu Su, Yoshihiro Tsujimoto, Akira Miura, Shinichiro Asai, Maxim Avdeev, Hiraku Ogino, Miho Ako, Alexei A. Belik, Takatsugu Masuda, Tetsuo Uchikoshi, Kazunari Yamaura
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Journal Title
Chemical Communications
Volume: 53
Issue: 27
Pages: 3826-3829
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Ba2NiOsO6: A Dirac-Mott insulator with ferromagnetism near 100 K2016
Author(s)
H. L. Feng, S. Calder, M. P. Ghimire, Y.-H. Yuan, Y. Shirako, Y. Tsujimoto, Y. Matsushita, Z. Hu, C.-Y. Kuo, L. H. Tjeng, T.-W. Pi, Y.-L. Soo, J. He, M. Tanaka, Y. Katsuya, M. Richter, and K. Yamaura
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Journal Title
Phys. Rev. B
Volume: 94
Issue: 23
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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