| Project/Area Number |
24540336
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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 |
Condensed matter physics I
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
Kaneko Koji 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 量子ビーム応用研究センター, 研究副主幹 (30370381)
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| Co-Investigator(Renkei-kenkyūsha) |
WAKIMOTO Shuichi 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 量子ビーム応用研究センター, 研究主幹 (40399415)
TSUTSUI Satoshi 公益財団法人高輝度光科学研究センター, 利用研究促進部門, 主幹研究員 (70360823)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | ラットリング / フォノン / 中性子散乱 / X線非弾性散乱 / 物性実験 / 国際研究者交流（フランス） / 国際研究者交流（アメリカ） / 強相関電子系 / 粒子線 / ナノ材料 |
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| Outline of Final Research Achievements |
Anharmonic oscillation and its coupling to other degrees of freedom can give rise to emergent phenomena in matters. In this study, we employed a complementary use of synchrotron x-ray and neutron scattering to explore anharmonicity and its effects on physical properties. We revealed importance of anharmonicity in unconventional physical properties, such as superconductivity, heavy-fermion state and quantum criticality in cage compounds, filled skutterudites PrT4Sb12, beta-pyrochlore AOs2O6 and stannide superconductors (Ca,Sr)3T4Sn13 through a detailed investigation of static and dynamical responses. Detailed insights into both phonon and crystal field excitations in vibronic compounds CeAl2 can contribute to establish theoretical model and look for nuclear-magnetic interference effects.
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