| Budget Amount *help |
¥47,320,000 (Direct Cost: ¥36,400,000、Indirect Cost: ¥10,920,000)
Fiscal Year 2014: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2013: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
Fiscal Year 2012: ¥22,230,000 (Direct Cost: ¥17,100,000、Indirect Cost: ¥5,130,000)
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| Outline of Final Research Achievements |
In this project, we have studied the so-called "electronic nematic" states in strongly correlated electron systems such as iron-based superconductors and heavy-fermion materials, by using several new experimental techniques. One of the most important achievements is that we identified broken fourfold rotational symmetry in the hidden-order phase in a uranium-based compound, whose nature has been a long-standing mystery in condensed matter physics. This conclusion has been consistently obtained from a variety of measurements including magnetic anisotropy measurements by using sensitive torque magnetometry, high-resolution crystal structure analysis by using synchrotron X-ray, angular dependence of the effective mass by cyclotron resonance, and nematic susceptibility analysis from elastoresistance measurements by using piezoelectric devices.
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