| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
In this research project, I obtained impotant NQR experimental results in the field of the heavy-fermion superconductivity. It is generally considered that spin fluctuation induces superconductivity in many heavy-fermion superconductos. However, I suggested that superconductivity is derived from some kind of fluctuations except for spin ones in heavy-fermion compound CeIrIn5. It is probable that the fluctuation related with the occurence of superconductivity in CeIrIn5 is electric rather than magnetic. Next, I added a magnetic interaction to CeIrIn5 by the Cd doping. The addition of a magnetic interaction leads to the increase in Tc, suggesting that the collaboration of two interactions (maybe spin and electric fluctuations) is able to enhance Tc. I belive that this important experimental result contributes to the realization of a room temperature superconductor.
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