Anisotropic superconducting gap with robustness against the intrinsic disorder
| Project/Area Number |
26800183
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics II
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| Research Institution | Niigata University |
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Principal Investigator |
Kase Naoki 新潟大学, 自然科学系, 助教 (10613630)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 超伝導 / 比熱 / 極低温 / 強相関 / 強相関系 |
|---|
| Outline of Final Research Achievements |
We investigated anisotropic superconducting gap with robustness against intrinsic disorder. Specific heat measurements suggest that Y5Ir6Sn18 has anisotropic superconducting gap. Specific heat in rotating magnetic field shows clear four-fold symmetry in Y5Ir6Sn18, suggesting anisotropic superconducting gap. muSR measurements indicate that time-reversal symmetry is broken in R5Rh6Sn18 (R = Sc, Y, Lu). We find seven new superconductors, SrPd2Sb2 etc. We have succeeded in performing specific heat measurements of BiCh2-based superconductors with single crystal of less than 1 mg, and revealed superconducting gaps symmetry from specific heat measurements. Thermal conductivity measurements shows existence of minor superconducting gap of Ca3Rh4Sn13, suggesting that superconducting gap is multiband.
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Report
(4 results)
Research Products
(90 results)
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[Journal Article] Field-induced incommensurate phase in the strong-rung spin ladder with ferromagnetic legs2014
Author(s)
H. Yamaguchi, H. Miyagai, M. Yoshida, M. Takigawa, K. Iwase, T. Ono, N. Kase, K. Araki, S. Kittaka, T. Sakakibara, T. Shimokawa, T. Okubo, K. Okunishi, A. Matsuo, and Y. Hosokoshi
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Journal Title
Phys. Rev. B
Volume: 89
Issue: 22
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Presentation] α-Mnの圧力下物性測定2016
Author(s)
福原慶, 寺島宗一郎, 加瀬直樹, 中野智仁, 武田直也, 雨海有佑, 村山茂幸
Organizer
第57回高圧討論会
Place of Presentation
筑波大学大学会館
Year and Date
2016-10-26
Related Report
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[Presentation] α-Mnの圧力下物性2016
Author(s)
福原慶, 加瀬直樹, 中野智仁, 武田直也, 雨海有佑, 村山茂幸
Organizer
日本物理学会2016年秋季大会
Place of Presentation
金沢大学角間キャンパス
Year and Date
2016-09-13
Related Report
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[Presentation] TaS2の熱電物性の圧力効果2016
Author(s)
松本絋祐, 佐藤晴紀, 大沼翔馬, 荒木遼太, 加瀬直樹, 中野智仁, 武田直也
Organizer
日本物理学会2016年秋季大会
Place of Presentation
金沢大学角間キャンパス
Year and Date
2016-09-13
Related Report
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[Presentation] 1T-TaS2 の熱電物性2016
Author(s)
松本絋祐, 佐藤晴紀 大沼翔馬, 荒木遼太, 加瀬直樹, 中野智仁, 武田直也
Organizer
第 13 回日本熱電学会学術講演会
Place of Presentation
東京理科大学葛飾キャンパス
Year and Date
2016-09-05
Related Report
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