| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
|---|
| Outline of Final Research Achievements |
The current-induced dynamics of bubble domains in perpendicularly magnetized ferrimagnetic (transition-metal-rare-earth alloy) wires with Pt cap layers was investigated. It was found that the shape change of the bubble domains occurred by the current flow and that it is difficult to move the bubble domains by the current flow. We found that the bubble domains moved to the electric current direction with growing in oblique angles when the spin currents via spin Hall effect were induced. The oblique directions of the bubble-domain’s growth in the wire with the transition-metal-dominant and rare-earth-dominant magnetizations were opposite with each other. Comparison between experimental results and micromagnetic calculations, in which the spin injection from the Pt layer was considered, implied that the spin currents via spin Hall effect provide spin transfer torque to the magnetic moment of transition metal layers more than that of rare-earth metal layers.
|
