| Budget Amount *help |
¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2018: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2017: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
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| Outline of Final Research Achievements |
We have studied the low-temperature phase diagram of the Pr-based non-Kramers system based on the low-temperature transport measurements in high magnetic fields under pressures. We have revealed the presence of four novel electronic states, including quadrupole ordering and non-Fermi liquid (NFL) behavior originating from the quadrupolar Kondo effect, inherent to the multipolar degrees of freedom in PrRh2Zn20.
On the other hand, in PrT2Cd20(T=Rh, Pt) with weaker c-f hybridization, the NFL behavior has been observed, although quadrupole order has not. Thus, the c-f hybridization has governed the phase diagram, but the evolution of the phase diagram is different from the expectation from the Doniach picture.
The present results require a different/modified picture than the Doniach picture for a unified understanding of the phase diagram containing the various novel electronic states inherent to multipolar degrees of freedom.
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