2014 Fiscal Year Final Research Report
Magnetic and dielectric properties of organic charge transfer salts with hetro-dimer structures
| Project/Area Number |
23550149
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Functional materials chemistry
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| Research Institution | University of Yamanashi |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
SASAKI Takahiko 東北大学, 金属材料研究所, 教授 (20241565)
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| Research Collaborator |
HAMADA Koji
KOHNO Rei
YATO Yuya
IGUCHI Satoshi
NAKAMURA Toshikazu
MIURA Akira
NAGAO Masanori
TAKEI Takahiro
KUMADA Nobuhiro
TANAKA Isao
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Keywords | 量子スピン液体 / 電子型強誘電体 / 部分分子置換 |
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| Outline of Final Research Achievements |
We studied an organic charge transfer salt with the magnetic quantum spin liquid-like nature and electronic-ferroelectric property. The partly substitution of the donor molecule with analogues by approximately 1-10% results in the following remarkable variation of the electronic states. The 1% substitution with small molecules makes the spin liquid ground state unstable, while the dielectric properties are mainly governed by disorder. On the other hand, by the substitution with large molecules, the system becomes a superconducting state at low temperatures because of chemical pressure or weakened electron correlation.
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| Free Research Field |
物性化学
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