| Budget Amount *help |
¥25,870,000 (Direct Cost: ¥19,900,000、Indirect Cost: ¥5,970,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
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| Outline of Final Research Achievements |
The main purpose of this research project was to develop artificially-controlled magnetic structures having spatially twisted magnetization configurations in order to realize high performance spin devices. We successfully controlled the twisted magnetic structures by using the L10-FePt | Ni81Fe19 exchanged-coupled bilayers, and systematically investigated the magnetization dynamics for the twisted magnetic structures. We demonstrated the high efficient magnetization switching in the perpendicular configuration owing to the characteristic dynamics of the magnetic vortex formed in the bilayer, and examined the spin torque for nonuniform magnetic structures by exploiting the twisted magnetic structures. Also, we successfully observed the spin motive force in the twisted magnetic structure, which originated from the spin wave dynamics.
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