| Project/Area Number |
25620052
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Functional solid state chemistry
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
ISONO Takayuki 独立行政法人物質・材料研究機構, 超伝導物性ユニット, NIMSポスドク研究員 (70625631)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 量子スピン液体 / 磁気トルク / 有機固体 / スピンフラストレーション / 複合物性 / 量子常誘電 / 強相関電子系 / 分子性固体 |
|---|
| Outline of Final Research Achievements |
In order to reveal magnetic excitations at low temperatures in quantum spin-liquid states of triangular-lattice organic magnets, we performed torque magnetometry on kappa-H_3(Cat-EDT-TTF)_2 and kappa-(BEDT-TTF)_2Cu_2(CN)_3. We found that magnetic susceptibility shows a nearly temperature-independent behavior with a finite value below the temperature of 3 K for both the magnets. The comparison of the finite values among the triangular-lattice organic magnets revealed the common nature of the quantum spin-liquid states; the values are scaled by antiferromagnetic exchange-coupling constants.
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