Electric Control of Spin Helicity in Multiferroic Triangular Lattice Antiferromagnet CuCrO2 with Proper-Screw Order
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概要
- 論文の詳細を見る
We have carried out a spin-polarized-neutron study on multiferroic CuCrO2 to clarify the origin of the ferroelectricity. The neutron results demonstrate that an incommensurate proper-screw magnetic structure of CuCrO2 induces electric polarization. Not only the magnetic structure but also the oxygen location contributes to the ferroelectricity of CuCrO2. The electric polarization of CuCrO2 can be explained not by a conventional spin-current model but by a theoretical prediction proposed by Arima. The spin helicities of CuCrO2 can be reversed by the reversal of the electric field $E$ in the multiferroic phase.
- Physical Society of Japanの論文
- 2009-12-15
著者
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Kimura Tsuyoshi
Division Of Biofunctional Molecules Institute Of Biomaterials And Bioengineering Tokyo Medical And D
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Matsuura Masato
Department Of Biofunctional Informatics Graduate School Of Health Care Sciences Tokyo Medical And De
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Soda Minoru
Department Of Physics Nagoya University
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Hirota Kazuma
Department of Earth and Space Science, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Hirota Kazuma
Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043
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Kimura Kenta
Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531
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Kimura Tsuyoshi
Division of Material Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531
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Matsuura Masato
Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043
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Soda Minoru
Department of Earth and Space Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043
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Kimura Kenta
Division of Material Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531
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