Budget Amount *help |
¥19,890,000 (Direct Cost: ¥15,300,000、Indirect Cost: ¥4,590,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2012: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2011: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
|
Outline of Final Research Achievements |
In order to understand quantum criticality and anomalous electronic states near a quantum critical point (QCP) in quantum critical materials, we studied the specific heat, Seebeck coefficient, Nernst coefficient, and thermal conductivity of Yb-based strongly correlated electron systems under multi-extreme condition, such as low temperature, high field, and high pressure. Based on these results, we demonstrated the validity of Wiedemann-Franz law even around QCP and also clarified transport properties near metamagnetic transition in YbCo2Zn20,YbRh2Si2,β-YbAlB4. In addition, by means of the new analysis such as the ratio of the Seebeck coefficient to the specific heat, we succeeded to get crucial information for understanding the electronic states near QCP.
|