Syntheses of new carbon-based superconductors using solution-process and electrochemical process
| Project/Area Number |
24654105
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | Okayama University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 超伝導 / 溶液プロセス / 電気化学 / 有機芳香族 / グラファイト / 鉄セレン系物質 / 電界効果キャリア注入 / 液体アンモニア / グラフェン / 有機芳香族分子 / 二次元層状物質 / 超伝導体 / 炭素系物質 / インターカレーション / アンモニア法 / 電気化学法 |
|---|
| Research Abstract |
An intercalation of metal atoms into various types of carbon materials was examined using a solution process and an electrochemical process. The Li doped picene shows the superconductivity with a superconducting transition temperature (Tc) as high as 11 K, while the K doped [6]phenacene also shows the Tc of 6 K. Furthermore, the metal-intercalation into graphite was also investigated, which provides the superconducting materials. The highest Tc is now 11.5 K in CaC6, which is the same as that prepared using high-temperature synthesis method with Li/Ca alloy. We tried to make superconducting materials through the intercalation of metal atoms into two-dimensional FeSe crystals, and diverse superconducting materials were successfully produced; the Tc of 46 K is achieved under high pressure. The high-density carrier accumulation into phenacene thin film and crystal was also achieved using electric-double-layer capacitor.
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Report
(3 results)
Research Products
(32 results)
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[Journal Article] Superconducting phases in (NH3)yMXFeSe1-ZTeZ (M=Li, Na and Ca)2014
Author(s)
Yusuke Sakai, Lu Zheng, Masanari Izumi, Kazuya Teranishi, Ritsuko Eguchi, Hidenori Goto, Taiki Onji, Shingo Araki, Tatsuo C. Kobayashi, and Yoshihiro Kubozono
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Journal Title
Physical Review
Volume: B 89
Issue: 14
Pages: 144509-144509
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Superconductivity in (NH3)yCs0.4FeSe2013
Author(s)
L. Zheng, M. Izumi, Y. Sakai, R. Eguchi, H. Goto, Y. Takabayashi, T. Kambe, T. Onji, S. Araki, T. C. Kobayashi, J. Kim, A. Fujiwara, Y. Kubozono
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Journal Title
Physical Review B
Volume: 88
Issue: 9
Pages: 94521-94521
DOI
NAID
Related Report
Peer Reviewed
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