Material-design-concept for new high-Tc iron-based superconductors utilizing the multi-orbital nature
| Project/Area Number |
26800182
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics II
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
IIMURA SOSHI 東京工業大学, 応用セラミックス研究所, 助教 (80717934)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 鉄系超伝導体 / 輸送特性 / 第一原理計算 / 中性子回折 |
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| Outline of Final Research Achievements |
Iron-based superconductors, LaFeAsO1-xHx, has the two superconducting (SC) phases and two anti-ferromagnetic (AFM) phases. From the transport properties and first-principle calculations, it was shown that the half-filled state of Fe-3dxy orbital strongly affects the normal-conduction properties, and contributes the appearance of AFM in the proximity of the higher critical temperature (Tc) SC phase. These results indicate that the high-Tc superconductivity may emerge in the proximity of the half-filled state of Fe-3dxy, which provides a new design concept for the high-Tc superconductor.
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Report
(3 results)
Research Products
(20 results)
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[Presentation] Neutron diffraction study of 154SmFeAsO1-xDx2016
Author(s)
Soshi Iimura, Hiroshi Okanishi, Satoru Matsuishi, Haruhiro Hiraka, Kazutaka Ikeda, Thomas C. Hansen, Toshiya Otomo, and Hideo Hosono
Organizer
American Physical Society March Meeting
Place of Presentation
Baltimore, US
Year and Date
2016-03-14
Related Report
Int'l Joint Research
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[Presentation] 鉄系超伝導体LaFeAsO1-xHxの高圧下でのX線回折と共鳴X線発光分光測定2015
Author(s)
山本義哉, 山岡人志, 吉田雅洋, 太田雄, 石井啓文, 平岡望, Ku-Ding Tsuei, Jung-Fu Lin, 石井賢司, 山浦淳一, 飯村壮史, 松石聡, 細野秀雄, 水木純一郎
Organizer
日本物理学会2015年秋季大会
Place of Presentation
関西大学、千里山キャンパス
Year and Date
2015-09-16
Related Report
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[Presentation] Phase Diagram of LnFeAsO1-xHx2015
Author(s)
Soshi Iimura, M. Hiraishi, K. Kojima, J. Yamaura, H. Hiraka, Y. Murakami, S. Matsuishi, and Hideo Hosono
Organizer
BIT's 4th Annual World Congress of Advanced Materials 2015
Place of Presentation
Chongqing, China
Year and Date
2015-05-27
Related Report
Int'l Joint Research / Invited
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