Development of Iron-based superconducting materials towards high field applications
| Project/Area Number |
15H05519
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
Yamamoto Akiyasu 東京農工大学, 工学(系)研究科(研究院), 特任准教授 (20581995)
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| Research Collaborator |
TOKUTA Shinnosuke 東京農工大学, 大学院工学府, 大学院生
SANOGAWA Yu 東京農工大学, 大学院工学府, 大学院生
WEISS Jeremy コロラド大学, ボルダー校・物理学科, 助教
AINSLIE Mark ケンブリッジ大学, 工学部, EPSRC Early Career Fellow
POLYANSKII Anatolii 米国立強磁場研究所, 超伝導応用研究センター, 研究員
LARBALESTIER David 米国立強磁場研究所, 超伝導応用研究センター, 所長
HELLSTROM Eric フロリダ州立大学, 機械工学科, 教授
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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 |
¥23,530,000 (Direct Cost: ¥18,100,000、Indirect Cost: ¥5,430,000)
Fiscal Year 2017: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2016: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2015: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
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| Keywords | 超伝導 / 鉄系高温超伝導体 / 高磁場応用 / 材料 / 磁石 / 超伝導材料・素子 / 鉄系高温超伝導 / 強力磁石 |
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| Outline of Final Research Achievements |
A trapped field of over 1 T at 5 K and 0.5 T at 20 K has been measured between a stack of magnetized cylinders of bulk polycrystalline Ba0.6K0.4Fe2As2 superconductors 10 mm in diameter. Magneto-optical imaging revealed a trapped field distribution corresponding to uniform macroscopic current loops circulating through the sample. A standard numerical modelling technique using the measured Jc(B, T) characteristics of a small specimen reproduced the experimentally measured trapped fields well, again indicating the homogeneous current loops in the polycrystalline bulk. Given the untextured polycrystalline nature of the cylinders and their large irreversibility field (> 90 T), it is expected that larger IBSC bulks could trap fields in excess of 10 T.
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Report
(4 results)
Research Products
(63 results)
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[Journal Article] Selective mass enhancement close to the quantum critical point in BaFe2(As1-xPx)22017
Author(s)
Grinenko V., Iida K., Kurth F., Efremov D. V., Drechsler S.-L., Cherniavskii I., Morozov I., Haenisch J., Foerster T., Tarantini C., Jaroszynski J., Maiorov B., Jaime M., Yamamoto A., Nakamura I., Fujimoto R., Hatano T., Ikuta H., Huehne R.
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Journal Title
Scientific Reports
Volume: 7
Issue: 1
Pages: 4589-4589
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] Optimization of high isostatic pressure annealing processes for2017
Author(s)
Andrzej Morawski, Tomasz Cetner, Stanislaw Filipek, Miroslaw Gurzkowski, Daniel Gajda, Grzegorz Gajda, Andrzej Zaleski, Matt Rindfleisch, Michael Tomsic, Wolfgang Haesler, Konstantin Nenkov, Akiyasu Yamamoto, Ryszard Diduszko, Piotr Przyslupski
Organizer
13th European Conference on Applied Superconductivity
Related Report
Int'l Joint Research
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[Book] 超伝導磁束状態の物理2017
Author(s)
門脇 和男編（チャプター分担執筆）
Total Pages
692
Publisher
裳華房
ISBN
9784785329228
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