| Project/Area Number |
23860042
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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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 Metropolitan University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 超伝導 / 超伝導線材 / 新規超伝導物質 / 鉄系超伝導 / 鉄カルコゲナイド |
|---|
| Research Abstract |
We have developed novel fabrication process of FeSe superconducting wires using structural transformation of the wire core. The hexagonal FeSe1.2, starting wire core, was packed into the Fe sheath. By annealing at high temperature, the core and Fe sheath reacted and the transformation from hexagonal FeSe1.2 to tetragonal FeSe superconductor. This novel PIT method allowed us to obtain FeSe superconducting wires with high-density core. Furthermore, during this project, we have discovered new BiS2-based layered superconductor Bi4O4S3 and REOBiS2 systems. To date, 11 superconductors related to the BiS2-based superconductors have been discovered all over the world.
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