| Project/Area Number |
20540345
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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 |
Condensed matter physics II
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| Research Institution | Saitama University |
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Principal Investigator |
SATOH Kazuhiko Saitama University, 大学院・理工学研究科, 教授 (60225927)
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| Co-Investigator(Kenkyū-buntansha) |
TANIGUCHI Hiromi 埼玉大学, 大学院・理工学研究科, 准教授 (50323374)
髭本 亘 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (90291103)
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| Co-Investigator(Renkei-kenkyūsha) |
HIGEMOTO Wataru 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (90291103)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 有機物質 / ミュオンスピン回転緩和法 / 強相関電子系 / 高圧 / ミュオンスピン回転・緩和法 |
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| Research Abstract |
High-pressure muon spin rotation and relaxation experiments were carried out for antiferromagnetic organic insulator β'-(BEDT-TTF)_2ICl_2, which shows superconducting transition under high pressure, and found the muon precession signal under high pressure for organic conductor for the first time. Temperature and pressure dependence of precession frequency and precession amplitude suggest the existence of pressure-induced phase transition around 0.7GPa. We also carried out zero-field muon spin relaxation experiment for organic superconductor κ-(BEDT-TTF)_4Hg_<2.89>Br_8 and found that internal field is constant around the superconducting transition temperature.
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