2010 Fiscal Year Final Research Report
Creation of ferromagnetic ferroelectrics based on chiral one-dimensional metal complexes.
| Project/Area Number |
20550130
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional materials chemistry
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| Research Institution | University of Hyogo |
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Principal Investigator |
MITSUMI Minoru University of Hyogo, 大学院・物質理学研究科, 助教 (20295752)
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| Co-Investigator(Kenkyū-buntansha) |
IKEDA Naoshi 岡山大学, 自然科学研究科, 教授 (00222894)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 電気・磁気的機能 / キラル磁性体 / 強磁性強誘電体 |
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| Research Abstract |
Multiferroic materials exhibiting ferromagnetic and ferroelectric properties have attract much attention because of the control of a magnetism by an electric field and/or the control of an electric polarization by a magnetic field. To realize such a system, we have synthesized four new chiral rhodium(I)-semiquinonato complexes 1-4 by using chiral semiquinonato ligands. Magnetic studies revealed that the complex molecules in the compound 1 and 2 form triplet dimer in the linear chain, and the magnetic interaction between the triplet dimers changes from antiferromagnetic in the room temperature phase to ferromagnetic in the low temperature phase with the phase transition. Ac magnetic susceptibility shows a two-step magnetic anomaly below 8 K.
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[Journal Article] Syntheses, Structures and Solid-State Properties of MMX Mixed-Valence Chains, [NiII/III 2(RCS2)4I]∞ (R = Et, n-Pr and n-Bu) : Evidence of a Spin-Peierls Transition2009
Author(s)
M. Mitsumi, Y. Yoshida, A. Kohyama, Y. Kitagawa, Y. Ozawa, M. Kobayashi, K. Toriumi, M. Tadokoro, N. Ikeda, M. Okumura, M. Kurmoo
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Journal Title
Inorg.Chem. 48
Pages: 6680-6691
Peer Reviewed
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[Remarks] ホームページ等
