| 研究課題/領域番号 |
23K13069
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| 研究種目 |
若手研究
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| 配分区分 | 基金 |
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| 審査区分 |
小区分13030:磁性、超伝導および強相関系関連
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| 研究機関 | 東京大学 |
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研究代表者 |
ヌイェン カーン 東京大学, 大学院工学系研究科(工学部), 特任助教 (50775608)
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| 研究期間 (年度) |
2023-04-01 – 2025-03-31
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| 研究課題ステータス |
交付 (2023年度)
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| 配分額 *注記 |
4,550千円 (直接経費: 3,500千円、間接経費: 1,050千円)
2024年度: 650千円 (直接経費: 500千円、間接経費: 150千円)
2023年度: 3,900千円 (直接経費: 3,000千円、間接経費: 900千円)
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| キーワード | Magnetism / Skyrmion / Topology / Intermetallics / centrosymmetric / Topological Spin Texture / rare-earth intermetallic |
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| 研究開始時の研究の概要 |
Via intensively developing new rare earth intermetallic compounds with high symmetry structure, we aim to explore topological spintextures generated by a new mechanism toward the realization of skyrmions with colossal emergent magnetic field at room-temperature in a wider range of materials.
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| 研究実績の概要 |
This project aims to focus on material exploration and formation mechanism of magnetic skyrmions and other topological spin textures in intermetallics RT2SX2 "122" (R: rare-earth, T: transition metal elements). In the initial phase, we successfully synthesized several materials exhibiting intriguing features in magnetic and transport properties. An example of this is NdRu2Si2, which shows intriguing magnetic orders such as stripe single-Q state and checkerboard double-Q state under the presence of a magnetic field. Depending on the magnetic structure, non-trivial behaviors in transport properties and neutron diffraction can be observed, suggesting this material as a promising platform for investigating the interplay between topological characteristics, magnetism and transport properties.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
Aligned with the goals of this project, we have successfully synthesized single crystals of various intermetallic materials with the "122" structure, which is crucial for investigating intriguing magnetic and transport properties. This effort is particularly significant as we collaborate with researchers from diverse disciplines, such as theoretical studies and neutron diffraction research. These factors contribute to the smooth progress of the current project.
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| 今後の研究の推進方策 |
For the second phase of this project, we aim to expand the project's scope in terms of material development. Additionally, we plan to summarize the ongoing results into a comprehensive research article. Collaborating with theorists and quantum beam research scientists, we aim to delve deeper into the stabilization mechanism of these magnetic structures. Our overarching goal is to derive guiding principles for material design based on the insights gained from these investigations. This strategic approach not only broadens the project's horizons but also sets the stage for impactful contributions to the field of materials science and technology.
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