Gigantic Optical Magnetoelectric Effect in CuB_2O_4(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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概要
- 論文の詳細を見る
Although it has been well known that materials in which both space inversion and time reversal symmetries are broken can host optical magneto-electric effect, i.e., change in optical constants with the reversal of propagating direction of light, the largest change in absorption ever reported on this effect was 0.2%. Here we show that optical absorption in noncentrosymmetric weak ferromagnetic material CuB_2O_4 changes by more than 100% with reversal of a low magnetic field of 300Oe. The gigantic optical magneto-electric effect is ascribed to the canted antiferromagnetic spin ordering of square-coordinated Cu^<2+> sites, where the local inversion is slightly broken.
- 社団法人日本物理学会の論文
- 2008-01-15
著者
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ARIMA Taka-hisa
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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Arima Taka-hisa
Institute Of Materials Science University Of Tsukuba
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Arima Taka‐hisa
Tohoku Univ. Sendai Jpn
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Saito Mitsuru
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577,
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Taniguchi Kouji
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577,
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Taniguchi Kouji
Tohoku Univ. Sendai Jpn
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Taniguchi Kouji
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
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Saito Mitsuru
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
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