| Budget Amount *help |
¥25,740,000 (Direct Cost: ¥19,800,000、Indirect Cost: ¥5,940,000)
Fiscal Year 2023: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2020: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
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| Outline of Final Research Achievements |
Solving energy loss is an issue in electronic information and optical communications supporting the information society. Therefore, it is important to conduct research that utilizes and integrates electron spin memory and optoelectronics, which can suppress power consumption. Circularly polarized light is a spin state of light, which can be mutually converted to the spin state of electrons during photoelectric conversion such as light absorption and emission in compound semiconductors such as GaAs.
In order to explore new optical spin functions, a field-effect optical spin transistor was studied, where the spin-polarized state of electrons generated by circularly polarized light input can be controlled by an external electric field, and the output will be circularly polarized luminescence. As a result, electric field control of spin polarization information has been realized at room temperature, which is important for practical use.
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