| Budget Amount *help |
¥24,830,000 (Direct Cost: ¥19,100,000、Indirect Cost: ¥5,730,000)
Fiscal Year 2015: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
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| Outline of Final Research Achievements |
We have studied the spin Hall angle of 5d transition metals using the spin Hall magnetoresistance effect and found that the angle depends on their structure. In many materials, a large spin Hall angle was found when the metal forms an amorphous-like phase. We reported that it is important to take into account the absorption of the longitudinal spin current to a metallic ferromagnet in order to properly describe spin Hall magnetoresistance. Using harmonic Hall voltage measurements, we have studied the origin of current induced torques that arise in thin film heterostructures. In such systems, we found that the spin mixing conductance takes an anomalous value. Finally, in similar heterostructures, we demonstrated that the chirality of the magnetic structure can be controlled by the selection of the non-magnetic material that faces the ultra-thin magnetic layer.
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