2015 Fiscal Year Final Research Report
Lorentz force on light propagating in multiferroics
| Project/Area Number |
24244045
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Arima Taka-hisa 東京大学, 新領域創成科学研究科, 教授 (90232066)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | 方向二色性 / 電気磁気効果 / 光のローレンツ力 / メタホウ酸銅 / 蜂の巣格子 |
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| Outline of Final Research Achievements |
A difference in refractive index with the reversal of the propagation vector of light, termed directional birefringence, is observed in some multiferroics. It was predicted that this phenomenon may act on a photon as the Lorentz force on an electron. An experimental study is performed on multiferroic copper metaborate to confirm the presence of the Lorentz force on a photon.
In order to enlarge the Lorentz force, the directional dichroism/birefringence must be enhanced. It has been discovered that the application of a high magnetic field on copper metaborate enhances the directional dichroism and results in the one-way transparency.
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| Free Research Field |
物質科学
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