2015 Fiscal Year Final Research Report
Control of Dynamics of Quantized Vortices and Progress in Materials Science
| Project/Area Number |
23226014
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
TOSHIDA Yutaka 名古屋大学, 工学研究科, 教授 (20314049)
AWAJI Satoshi 東北大学, 金属材料研究所, 准教授 (10222770)
NISHIZAKI Terukazu 九州産業大学, 工学部, 准教授 (90261510)
MELE Paolo 室蘭工業大学, 工学研究科, 准教授 (70608504)
HORIDE Tomoya 九州工業大学, 工学研究院, 助教 (70638858)
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| Project Period (FY) |
2011-04-01 – 2016-03-31
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| Keywords | 薄膜 / ナノ組織制御 / 超伝導 / 磁束ピン止め / シミュレーション |
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| Outline of Final Research Achievements |
Based on TDGL simulations of critical current density Jc and unique flux-pinning modeling, optimum artificial pinning centers (APCs) of REBa2Cu3Ox (REBCO) superconducting films have been extensively studied. REBCO films were deposited on single crystal substrates or IBAD-MgO substrates by using PLD method which is available for making nanocomposite films. Several deposition techniques such as mixed target, low temperature growth and so on were used for controlling size and spatial distribution of APCs. Very high global pinning force density of 32 GN/m3 at 77 K and 1800 GN/m3 at 4.2 K were successfully attained, and simultaneously zero-field Jc might reach 30% of theoretical limit.
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| Free Research Field |
超伝導工学
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