2022 Fiscal Year Final Research Report
High Jc superconducting film by controlling the nanostructure and carrier density.
Project/Area Number |
20H02184
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 21050:Electric and electronic materials-related
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Research Institution | Seikei University |
Principal Investigator |
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 臨界電流密度 / 超伝導薄膜 / ナノコンボジット / 磁束ピン止め点 / キャリア密度 |
Outline of Final Research Achievements |
Superconductor is expected to be applied to next-generation electrical applications such as power transmission, power generation, energy storage, and electric motors because it can pass large currents with zero resistance. An improvement in critical current density (Jc) is an important characteristic as well as critical temperature (Tc) for the applications. In this work, for maximizing Jc, we combine (1) nano-sandwich strain introducing technology and (2) carrier density control technology, in additon to depeloped method to introducing artificial pinning centers. Furthermore, the new material design will be applied to other superconducting and functional electrical materials.
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Free Research Field |
電気電子材料
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Academic Significance and Societal Importance of the Research Achievements |
SDGsやSociety5.0社会に役立つイノベーションに未だ超伝導が貢献できていないのは高価な液体ヘリウム温度まで冷やさなければ超伝導にならない金属系超伝導線材が用いられているためである。一方、無尽蔵かつ低コストな液体窒素で超伝導になるCu酸化物超伝導薄膜線材は、磁場中Jc特性は応用に求められる特性に達していない。本研究で実施するJcを最大にする超電導材料設計指針により低コストである液体窒素温度下で超伝導応用に必要とされるJc特性まで向上させる。さらに本指針により、既存材料だけでなく新超伝導材料のJcを飛躍的に向上させ、革新的超伝導応用により社会に貢献する。
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