2016 Fiscal Year Final Research Report
Novel optical control of electric and spin current in non-magnetic metamaterials
| Project/Area Number |
16K13658
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Applied materials
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2017-03-31
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| Keywords | メタマテリアル / 非線形光学効果 / 対称性 / スピン流 / 光電流 |
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| Outline of Final Research Achievements |
In this research, we aimed to explore novel spintronics functionalities based on the creation of functional artificial materials (metamaterials). Specifically, by introducing an artificial three-fold rotational symmetric structure with a size less than the wavelength of light into the nonmagnetic metallic thin film, electric charge current is generated only by light irradiation without applying an external electric field. Its direction can be controlled by 360 degrees in the two-dimensional plane of the nonmagnetic metamaterials. By developing this idea, it is expected to open a new principle for generating and controlling spin current by light.
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| Free Research Field |
光物性
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