Development of ultrahigh-pressure NMR technique and study of strongly correlated electron systems
Project/Area Number |
24740219
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Condensed matter physics II
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Research Institution | Kochi University |
Principal Investigator |
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Project Period (FY) |
2012-04-01 – 2014-03-31
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Project Status |
Completed (Fiscal Year 2013)
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Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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Keywords | 核磁気共鳴 / 高圧研究 / 超高圧NMR / 鉄系高温超伝導 / 装置開発 / 高圧実験 / 超高圧 / 強相関電子系 |
Research Abstract |
It had been almost impossible to measure magnetism and superconductivity by microscopic probes under ultrahigh pressure over 3GPa in the field of the condensed matter physics. This study aims to develop such a ultrahigh-pressure technique (expanding pressure range and simplifying) and to perform ultrahigh-pressure NMR experiments on several strongly correlated electron systems. The development for "Small high-pressure apparatus for general usage" has been quite successfully performed. Our new wiring setup allows a lot of electrodes and optical fibers to be inserted over 13GPa with high reliability. Namely, our cell become quite useful also for resistivity, ac-susceptibility, and other bulk experiments. In addition, we developed smaller ultrahigh-pressure cell and 3He-circulative fridge for it, which makes ultralow-temperature, ultrahigh-pressure NMR measurement possible.
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Report
(3 results)
Research Products
(56 results)
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[Presentation] Yb-Co-X新化合物の物性評価とNMR2014
Author(s)
北川健太郎,岩谷誠,小松健良,西岡孝,岸本恭来,松村政博,真木祥千子,山浦淳一,片山尚幸,澤博,松林和幸,上床美也
Organizer
日本物理学会2014年年次大会
Place of Presentation
東海大学湘南キャンパス(口頭、29pCM-11)
Year and Date
2014-03-29
Related Report
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[Presentation] Flux flow and novel quasiparticle dissipation in LiFeAs investigated by microwave surface impedance measurements2012
Author(s)
Okada, T., Maeda, A., Imai, Y., Takahashi, H., Kitagawa, K., Matsubayashi, K., Uwatoko, Y., Takigawa, M.
Organizer
Materials and Mechanisms of Superconductivity (M2S2012)
Place of Presentation
ワシントンDC
Related Report
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[Presentation] Magnetic penetration depth and flux flow resistivity of SrFe2(As,P)2 single crystals2012
Author(s)
Takahashi, H., Imai, Y., Okada, T., Maeda, A., Kitagawa, K., Matsubayashi, K., Takigawa, M., Uwatoko, Y.
Organizer
Materials and Mechanisms of Superconductivity (M2S2012)
Place of Presentation
ワシントンDC
Related Report
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[Presentation] Superconducting gap anisotropy in iron-pnictide LiFeAs: laser-ARPES2012
Author(s)
Yamamoto, H. Q., Okazaki, K., Ota, Y., Kotani, Y., Shimojima, T., Kiss, T., Kitagawa, K., Matsubayashi, K., Uwatoko, Y., Takigawa, M., Chen, C.-T., Watanabe, S., Shin, S.
Organizer
Materials and Mechanisms of Superconductivity (M2S2012)
Place of Presentation
ワシントンDC
Related Report
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