| Budget Amount *help |
¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2014: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2013: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2012: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
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| Outline of Final Research Achievements |
In this project, we theoretically study the real-time dynamics of excitation and relaxation of the electronic states in strongly correlated electron systems. The electron-electron interaction is expressed by the mutual precession of the coupled quantum-electron spin and local classically-ordered spin. We develop a numerical method to examine the time evolution of the electronic structure and find the multiple carrier generation by electron-electron interaction. Based on our theory, we design a hetero-structured device and successfully show the magnetically controlled photovoltaic effect experimentally. We also study the real-time dynamics of the topological magnetic texture in chiral and dipolar magnets and theoretically develop the design principles of skyrmionic memory devices.
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