Study of magnetic correlations in the electron-doped cuprate superconductors by means of impurity-substitution effects
Project/Area Number |
15K17689
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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 | Tohoku University |
Principal Investigator |
Suzuki Kensuke 東北大学, 金属材料研究所, 助教 (60734134)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Keywords | 銅酸化物高温超伝導 / 強相関電子系 / 中性子散乱法 / ミュオンスピン回転法 / 磁気相関 / 高温超伝導 / 磁性 |
Outline of Final Research Achievements |
Despite numerous studies on high-Tc cuprate superconductors, the detailed relationship between magnetic correlations and the superconductivity has not been clarified yet. The present project aimed to reveal the detailed magnetic correlations in the electron-doped cuprate superconductors R2-xCexCuO4 (R = Pr, Nd, Eu). First, it has been revealed that a small amount of substitution of a magnetic impurity Fe3+ works well on enhancing the weak magnetic signals of the present samples. Then, an existence of dynamically fluctuating magnetic state is revealed to be realized in a wide temperature region above the magnetic ordered state in the R2-xCexCuO4 system. This result shed new light on the electron-hole asymmetry of the high-Tc superconductivity.
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Report
(4 results)
Research Products
(10 results)
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[Journal Article] Strong electron correlation behind the superconductivity in Ce-free and Ce-underdoped high-Tc T'-cuprates2016
Author(s)
T. Adachi, A. Takahashi, K. M. Suzuki, M. A. Baqiya, T. Konno, T. Takamatsu, M. Kato, I. Watanabe, A. Koda, M. Miyazaki, R. Kadono, Y. Koike
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Journal Title
Journal of the Physical Society of Japan
Volume: 85
Issue: 11
Pages: 114716-114716
DOI
NAID
Related Report
Peer Reviewed
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[Presentation] Coincident disappearance of superconductivity and magnetic order in La2-xSrxCu1-yMyO4 (M = Fe, Al)2017
Author(s)
Kensuke M. Suzuki, T. Adachi, M. A. Baqiya, H. Guo, I. Kawasaki, M. Abdel-Jawad, S. Yoon, I. Watanabe, K. Koike
Organizer
The 14th International Conference on Muon Spin Rotation, Relaxation and Resonance
Related Report
Int'l Joint Research
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