| Project/Area Number |
23360139
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Kagoshima University |
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Principal Investigator |
TERADA NORIO 鹿児島大学, 理工学研究科, 教授 (20322323)
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| Co-Investigator(Kenkyū-buntansha) |
OKUDA Tetsuji 鹿児島大学, 理工学研究科, 准教授 (20347082)
小原 幸三 鹿児島大学, 理工学研究科, 教授 (10094129)
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| Co-Investigator(Renkei-kenkyūsha) |
OBARA Kozo 鹿児島大学, 理工学研究科, 教授 (10094129)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2013: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2011: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
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| Keywords | 超伝導材料・素子 / 表面・界面物性 / 薄膜 / 強相関エレクトロニクス / 量子エレクトロニクス / レアアース・レス |
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| Research Abstract |
The investigation of structural origin and the development of practical growth technique of the (Cu, C)-1201 rare-earth element free, superconducting films have been performed. The compressive interfacial strain at the top and bottom of the 1201 layer is a dominant factor for the emergence of superconductivity, which is optimized by controlling thickness of the over- and under-layers grown in the strained epitaxial-mode. The optimization yields an emergence of superconductivity on the ultra-thin 1201 layer. The repeating growth of this layered structure is a promising method for improving the critical current density per unit width. The emergence of superconductivity has been also confirmed on the films grown by the co-deposition of all of the constituents. As mentioned above, the fundamentals for the growth of the rare-earth free superconducting film and the foothold for practical growth techniques are established, which means the objective of this research is successfully achieved.
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