2022 Fiscal Year Final Research Report
Study on new functional enhancement methods of itinerant ferromagnets in transition-metal pnictides
Project/Area Number |
20K05663
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 36010:Inorganic compounds and inorganic materials chemistry-related
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Research Institution | Doshisha University (2021-2022) Kyoto University (2020) |
Principal Investigator |
Ohta Hiroto 同志社大学, 理工学部, 准教授 (60546985)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 層状化合物 / 遍歴強磁性 / サブナノシート磁石 / 磁性材料 |
Outline of Final Research Achievements |
In this project, I have studied transition metal pnictides from view points of magnetic materials and its functional enhancement. As a result, in some transition metal pnictide, transition metal ions in the different crystallographic sites can possess d-electrons with different nature, one is more localized and the other is more itinerant. In addition, localized d-electrons exhibit magnetic ordering, whereas itinerant d-electrons exhibit Pauli paramagnetism. For layered transition metal pnictides, I partially revealed the relationship between local structure and electronic structure.
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Free Research Field |
固体物理
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Academic Significance and Societal Importance of the Research Achievements |
本研究の成果は基礎的には遷移金属ニクタイドの局所構造と電子状態の関係の解明につながり、共有結合性が高く金属伝導を示す特殊な物質の理解につながる。一方で、遷移金属由来の遍歴強磁性の磁石化および性能強化に必要な希土類に関して、遷移金属が同様の役割を担い得ることを示しており、金属磁石に必須である希土類を遷移金属で代替するための手段につながる可能性がある。
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