| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2017: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
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| Outline of Final Research Achievements |
To dramatically improve the magnetoelectric effect of multiferroic materials, which are the core of the development of next-generation new devices, we constructed a multiscale optimal design method that adopted the homogenization theory for scale coupling and the steepest descent method for extreme value search, and realized material development led by numerical simulation. We searched for some optimized digital composite structures to maximize the magnetoelectric effect for typical ferroelectric and ferromagnetic materials. As a result, new digital composite structures that surpasses the conventional uniformly oriented laminate structure were discovered for all four material combinations. For the fabrication of digital structures, 3D printing by the fused deposition modeling has the effectiveness in comparison with the powder / sintering method and the sputtering method, and we applied for a patent on the optimization method and the discovered structures.
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