| Budget Amount *help |
¥26,000,000 (Direct Cost: ¥20,000,000、Indirect Cost: ¥6,000,000)
Fiscal Year 2019: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2018: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
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| Outline of Final Research Achievements |
In this research project, we explored functional properties originating from spin-orbit interactions in oxide heterostructures. We find that magnetic anisotropy in transition metal oxides can be controlled by heterostructuring them and modulating their metal-oxygen bonds. Imposing compressive strain through the structural mismatch is found to be useful to stabilize the perpendicular magnetic anisotropy in oxides. In addition, we successfully fabricated the inverse spinel oxide NiCo2O4 that has both half-metallic band structure and sufficient perpendicular magnetic anisotropy, although these two properties rarely coexist. We also clarified the physical origin of anomalies in transverse resistivity, which resemble what has been claimed to be the topological Hall effect in oxide heterostructures,
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