microscopic study of metal-nonmetal transition in the molecular based p-d system
| Project/Area Number |
23540423
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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 II
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| Research Institution | Gakushuin University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
TAKAHASHI Toshihiro 学習院大学, 理学部, 教授 (60163276)
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | p-d相互作用 / 分子性伝導体 / 金属-絶縁体転移 / 磁場誘起超伝導 / NMR / 金属絶縁体転移 / 国際研究者交流（フランス） / 磁場有機超伝導 / BETS / スピンダイナミクス |
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| Outline of Final Research Achievements |
The roles of π-d interaction in the organic BETS based conductor, λ-BETS2FeCl4 system which shows a metal-superconductor transition at high magnetic field/a metal-insulator transition at low field, were microscopically investigated by NMR technique. The exchange interaction between itinerant π spin and ``dilute" d spins in the Ga doping system was clarified by analysis of NMR spectra. The temperature dependences of NMR spectra and relaxation, it has been clarified that the p spin contribute to the antiferromagnetically ordered insulating state at the lower magnetic field region.
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Report
(5 results)
Research Products
(10 results)
