Budget Amount *help |
¥188,500,000 (Direct Cost: ¥145,000,000、Indirect Cost: ¥43,500,000)
Fiscal Year 2020: ¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2019: ¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2018: ¥20,540,000 (Direct Cost: ¥15,800,000、Indirect Cost: ¥4,740,000)
Fiscal Year 2017: ¥49,270,000 (Direct Cost: ¥37,900,000、Indirect Cost: ¥11,370,000)
Fiscal Year 2016: ¥81,250,000 (Direct Cost: ¥62,500,000、Indirect Cost: ¥18,750,000)
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Outline of Final Research Achievements |
Spin-orbit coupling is the origin of perpendicular magnetic anisotropy (PMA) needed for next-generation magnetic memory technologies, which is also the basis of related novel magnetotransport properties. In this study, microscopic understanding and development of functionalities were aimed by combining state-of-the-art thin film deposition, magnetic spectroscopy and first-principles calculations. Based on the well-defined heterostructures, we demonstrated the record tunnel anisotropic magnetoresistance (TAMR) and tunnel magnetoresistance (TMR) in Fe/MgO/Fe heterostructures with quantum wells and tuned interfaces, respectively. Microscopic understanding of interface PMA has been much improved, so that textbooks can revised in the interpretation of PMA. Effect of Rashba spin-orbit coupling on PMA was also investigated.
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