2012 Fiscal Year Final Research Report
Fabrication of Fe-based superconducting wires using effects ofstructural transformation and strain
| 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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| Keywords | 超伝導 |
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| 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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[Presentation] Fe1+dTe系における反強磁性転移と構造相転移2012
Author(s)
水口佳一,濱田健太朗,三浦大介,高津浩,後藤和基,門脇広明,中井祐介,真庭豊,町田理,坂田英明
Organizer
日本物理学会第67回年次大会,25a-YA-1
Place of Presentation
関西学院大
Year and Date
20120300
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