2021 Fiscal Year Final Research Report
Verification of novel physical phenomena and rapidly dense hydrogen absorption in hydrogen storage metals
| Project/Area Number |
19K03754
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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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| Review Section |
Basic Section 13030:Magnetism, superconductivity and strongly correlated systems-related
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| Research Institution | Hiroshima Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 水素吸蔵金属 / 超伝導 / 格子欠陥 |
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| Outline of Final Research Achievements |
In conventional superconductors with s-wave pairing symmetry, magnetic defects act as strong pair breakers, whereas nonmagnetic defects have negligible effect. In this report, we will show that nonmagnetic defects promote the superconductivity mediated by optical phonon in palladium-hydride system.
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| Free Research Field |
超伝導および強相関電子系
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| Academic Significance and Societal Importance of the Research Achievements |
これまで発見されてきた高温超伝導体の多くは，いわゆる強相関電子系で実現しており，典型的なフォノン媒介機構では説明がつかないとされている．一方で，すでにある程度確立したフォノン媒介超伝導理論にもとづき新たな高温超伝導体を探すという試みも多くの研究者によりなされてきた．水素吸蔵金属において発現する超伝導状態の理解は高デバイ温度に由来する高温超伝導発見の可能性と機構解明につながると期待され，その意義は大きい。
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