| Project/Area Number |
21740250
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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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 | Tokyo Institute of Technology |
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Principal Investigator |
MACHIDA Yo Tokyo Institute of Technology, 大学院・理工学研究科, 助教 (40514740)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 熱伝導率 / マルチギャップ超伝導 / 重い電子系超伝導 / 超伝導 / マルチギャップ / マルチギャップ超伝導体 / 熱電係数 / 量子臨界現象 |
|---|
| Research Abstract |
Effect of the electronic correlation on the multigap superconductivity has been investigated on the correlated electron system, including the heavy fermion system. The results have revealed the enhanced heat conduction in the Fe-based multigap superconductor Lu_2Fe_3Si_5 due to the dominant contribution of Fe 3d-electrons to the gap bands. Moreover, the anomalous heat transport phenomena as an indication of unconventional quantum criticality has been found in the first heavy-fermion superconductor β-YbAlB_4.
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