2017 Fiscal Year Final Research Report
Pairing mechanism of multiband full-gap superconductivity in heavy-electron systems
| Project/Area Number |
15K05158
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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 II
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
SAKAKIBARA Toshiro 東京大学, 物性研究所, 教授 (70162287)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 重い電子系超伝導 / 超伝導ギャップ / 比熱 / 磁場回転 / 圧力下比熱 |
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| Outline of Final Research Achievements |
Pairing mechanism of heavy-fermion superconductivity has attracted much attention because the first discovered heavy-fermion superconductor CeCu2Si2 has been unexpectedly revealed to be a multiband full-gap superconductor. In this study, we have examined the gap symmetry of CeCu2Si2 and those of various exotic superconductors, in order to deepen understanding of their exotic pairing mechanisms. Furthermore, we developed an apparatus for measuring field-angle-dependent specific heat under pressure to study the pressure effect on the gap structure.
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| Free Research Field |
超伝導、磁性
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