| Budget Amount *help |
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000)
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| Outline of Final Research Achievements |
The goal of this research is spin control and spin polarization of photo-induced spin polarized current in relation with the incident angle and polarization dependence of light The purpose is to clarify the spin direction and polarization of polar currents using spin-resolved photoelectron spectroscopy, from the one-to-one correspondence between photoelectrons and holes (source of photo-induced spin polarization current) generated by photoexcitation. We have developed a device that can simultaneously measure photoinduced current and spin-resolved photoelectron spectroscopy with extremely low temperatures. Although it was necessary to repair the laser, it was difficult to obtain the final result because it was not possible to repair it due to the influence of the corona virus because it was an overseas manufacturer.
However, we studied the relationship between photoexcitation energy and induced photoelectrons using a synchrotron radiation source, and obtained new findings.
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