2021 Fiscal Year Final Research Report
Design of novel hexagonal functional materials by atomic level simulation
Project/Area Number |
19K05246
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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 29010:Applied physical properties-related
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Research Institution | Tokyo Institute of Technology |
Principal Investigator |
Das Hena 東京工業大学, 科学技術創成研究院, 特任准教授 (60836170)
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Project Period (FY) |
2019-04-01 – 2022-03-31
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Keywords | Magnetoelectric effect / Condensed matter theory / Magnetism / Spintronics / Transition metal oxides |
Outline of Final Research Achievements |
The project aims to design magnetic materials with large magnetization and novel magnetoelectric (ME) coupling using computational simulations by exploring YMnO3 type hexagonal oxides and systems having related crystal structures. The findings are as follows; 1.An idea to realize novel non-collinear ferrimagnetic orders with potential electric field-controlled spin-reorientation (SR) transitions and 180° ME switching in LuFeO3 type systems (Under review, arXiv:2203.03841). 2.A probable microscopic mechanism to explain the RT multiferroic (MF) behavior of the (LuFeO3)m/(LuFe2O4)1 superlattices (Nat Commun 11, 5582 (2020)). 3.A predicted correlation between the spin-state and the MF properties of Co-doped BiFeO3 (Phys. Rev. Materials 6, 064401 (2022)). 4.Microscopic models of SR transitions in orthoferrites and orthochromites (Phys. Rev. Materials 5, 124416 (2021),Nat Commun 12, 1917 (2021)). 5. Design of prospective RT magnetic polar metals (Chem. Mater.33, 1594 (2021)).
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Free Research Field |
Condensed matter theory and materials physics
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Academic Significance and Societal Importance of the Research Achievements |
Our research provides a possible answer to the present quest for the multiferroic and Magnetoelectric system that can exhibit large magnetization and efficient magnetization control by the external means, for the potential application in novel devices such as voltage-controllable magnetic memories.
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