2019 Fiscal Year Final Research Report
Correlation effect between localized multipoles and conduction electrons
| Project Area | J-Physics: Physics of conductive multipole systems |
|---|
| Project/Area Number |
15H05883
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
|
| Allocation Type | Single-year Grants |
|---|
| Review Section |
Science and Engineering
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
鈴木 通人 東北大学, 金属材料研究所, 准教授 (10596547)
小林 寿夫 兵庫県立大学, 物質理学研究科, 教授 (40250675)
榊原 俊郎 東京大学, 物性研究所, 教授 (70162287)
中西 良樹 岩手大学, 理工学部, 教授 (70322964)
|
|---|
| Project Period (FY) |
2015-06-29 – 2020-03-31
|
| Keywords | J-Physics / 局在多極子 / 価数揺動 / 多極子近藤効果 / 超電導 |
|---|
| Outline of Final Research Achievements |
The close collaboration among project team members and researchers in other groups (such as B01 and C01) has significantly deepened our understanding of a wide variety of novel phenomena in materials featuring interaction of conduction electrons with localized atomic multipoles, the valence quantum criticality, and Mott physics with strong spin-orbit coupling. Moreover, we discovered new materials that harbor intriguing phenomena such as the f-electron skyrmion and new Berry curvature driven physical properties, while established a new concept named the cluster multipole.
|
| Free Research Field |
物性物理
|
| Academic Significance and Societal Importance of the Research Achievements |
局在多極子と伝導電子の相関効果の基礎学理を確立し、新たな量子機能の発見に繋がった。また原子サイトの多極子の概念を拡張したクラスター多極子という新しい概念が生まれた。これは磁気構造の理解を深め、物理現象の予言に有用であると同時に、第一原理計算の自動化にも貢献した。これらの新機能・新概念はスピントロニクスを始め様々な分野にも波及しており、次の飛躍への重要な一歩となる。
|
