2016 Fiscal Year Final Research Report
Novel dielectric phenomena in electric ferroelectricity
| Project/Area Number |
26287070
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Tohoku University |
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Principal Investigator |
Ishihara Sumio 東北大学, 理学(系)研究科(研究院), 教授 (30292262)
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| Co-Investigator(Kenkyū-buntansha) |
山内 邦彦 大阪大学, 産業科学研究所, 助教 (00602278)
妹尾 仁嗣 国立研究開発法人理化学研究所, 主任研究員研究室等, 研究員 (30415054)
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| Co-Investigator(Renkei-kenkyūsha) |
NAKA Makoto 東北大学, 理学研究科, 助教 (60708527)
IWAI Shinichiro 東北大学, 理学研究科, 教授 (60356524)
SASAKI Takahiko 東北大学, 理学研究科, 教授 (20241565)
IKEDA Naoshi 岡山大学, 理学研究科, 教授 (00222894)
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| Research Collaborator |
MATSUEDA Hiroaki 仙台高等専門学校, 専攻科, 教授
MATSUMOTO Munehisa 物質材料研究機構, 博士研究員
WATANABE Tsutomu 千葉工業大学, 教育センター, 講師
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 強相関電子 / 誘電体 / 磁性体 / 光物性 / 電荷秩序 / 電気磁気効果 |
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| Outline of Final Research Achievements |
Dielectric and magnetodielectric properties in “electronic ferroelectoricity” were examined. In particular, large spacial and temporal dielectric fluctuations and correlation between magnetic and electric dipole moments were focused on. We revealed mainly large dielectric fluctuation in a geometrical frustrated lattice, a linear magnetodielectric effect in dimer-type organic molecular solids, and melting of the magnetic long range order due to dielectric fluctuations.
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| Free Research Field |
固体物性理論
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