2015 Fiscal Year Final Research Report
Precision control of physical properties of topological insulators/superconductors by electrochemical method
| Project/Area Number |
24540320
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | Kyoto Sangyo University (2015)
Osaka University (2012-2014) |
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Principal Investigator |
SEGAWA Kouji 京都産業大学, 理学部, 教授 (20371297)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
|
| Keywords | トポロジカル絶縁体 / トポロジカル超伝導体 / 電気化学 / 単結晶 / 輸送特性 |
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| Outline of Final Research Achievements |
A new superconductor Cux(PbSe)5(Bi2Se3)6 is synthesized with the electrochemical method. The parent material (PbSe)5(Bi2Se3)6 is topological-insulator-related system, in which the topological insulator Bi2Se3 and ordinary insulator PbSe coexist in the unit cell. The transition temperature is not as high as CuxBi2Se3, but the superconducting volume fraction is almost 100% unlike CuxBi2Se3. This system is a candidate for a topological superconductor.
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| Free Research Field |
物性物理学
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