Tetracritical point between antiferromagnetism and superconductivity in heavy-fermion systems
| Project/Area Number |
20740195
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | Osaka University |
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Principal Investigator |
YASHIMA Mitsuharu Osaka University, 大学院・基礎工学研究科, 助教 (10397771)
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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: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 強相関系 / 超伝導 / 重い電子系 / 量子臨界点 / 圧力効果 / NMR/NQR / 磁性 / NMR / NQR |
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| Research Abstract |
We investigated the superconducting nature in the heavy-fermion systems, using the microscopic NMR/NQR method. We confirmed the strong coupling between the superconducting and antiferromagnetic order parameter around the tetracritical point, suggesting the close relationship between the superconductivity and the antiferromagnetic interactions. The present results give us a lot of important knowledge to theoretically solve the superconducting mechanism in the heavy ?fermion systems.
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Report
(4 results)
Research Products
(59 results)
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[Journal Article] Origin of Tc Enhancement Induced by Doping Yttrium and Hydrogen into LaFeAsO-Based Superconductors : ^<57>Fe, ^<75>As, ^<139>La, and 1H-NMR Studies2010
Author(s)
H.Yamashita, H.Mukuda, M.Yashima, S.Furukawa, Y.Kitaoka, K.Miyazawa, P.M.Shirage, H.Eisaki, A.Iyo
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Journal Title
J.Phys.Soc.Jpn. 79
Pages: 103703-103703
Related Report
Peer Reviewed
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