| Project/Area Number |
17072005
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Okayama University |
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Principal Investigator |
ZHENG Guo-qing Okayama University, 大学院・自然科学研究科, 教授 (50231444)
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| Co-Investigator(Kenkyū-buntansha) |
HAGIWARA Masayuki 大阪大学, 極限量子科学研究センター, 教授 (10221491)
GOTO Takayuki 上智大学, 理工学部, 教授 (90215492)
OTA Hitoshi 神戸大学, 分子フォトサイエンス研究センター, 教授 (70194173)
KUMAGAI Kenichi 北海道大学, 大学院・理学研究科, 教授 (70029560)
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| Project Period (FY) |
2005 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥104,300,000 (Direct Cost: ¥104,300,000)
Fiscal Year 2009: ¥15,100,000 (Direct Cost: ¥15,100,000)
Fiscal Year 2008: ¥24,100,000 (Direct Cost: ¥24,100,000)
Fiscal Year 2007: ¥24,200,000 (Direct Cost: ¥24,200,000)
Fiscal Year 2006: ¥25,100,000 (Direct Cost: ¥25,100,000)
Fiscal Year 2005: ¥15,800,000 (Direct Cost: ¥15,800,000)
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| Keywords | 強磁場 / 磁気共鳴 / 超伝導 / 量子磁性 / 強相関電子系 / NMR / ESR / 磁性体 / タンパク質 / スピン3重項超伝導 / 量子スピン系 / 巨大磁気抵抗 / 強磁性 / 磁化 / 比熱 |
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| Research Abstract |
The purpose of this project is to develop NMR and ESR techniques for scientific research at pulsed high magnetic fields. We have succeeded, for the first time in the world, in obtaining NMR spectra at pulsed magnetic fields up to 48 T by the spin-echo method. By conducting NMR measurements at static magnetic fields, we were able to reveal the ground state of the high-Tc superconductors, the Magnon excitation of quantum spin system NH_4CuCl_3 and the FFLO state in CeCoIn_5 superconductor. We performed ESR measurements at pulsed fields up to 70 T and studied the magnetic excitations in quantum magnets such as NDMAP, BaCoV_2O_8, Pb_2V_3O_9 and geometrically frustrated magnets NiGa_2S_4 and CuCrO_2, as well as the crystal field effect in Mn-based Myoglobin protein.
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