Resonant Magnetoelectric X-ray Scattering in GaFeO_3 : Observation of Ordering of Toroidal Moments(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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We report on the first observation of magnetoelectric X-ray scattering (MEXS), i.e., incident-k-direction-dependent scattering, for a polar ferrimagnet GaFeO_3. Near the K edge of Fe, the magnetic component of the (040) X-ray reflection shows a larger enhancement than that of the (020) X-ray reflection, which cannot be attributed to the genuine magnetic scattering, but to the MEXS of Fe^<3+> ions. Toroidal moments as defined by the outer product of the Fe off-center displacement and the magnetic moment show ferroic ordering, which causes the resonant MEXS at the Fe 1s-3d excitation energy.
- 社団法人日本物理学会の論文
- 2005-05-15
著者
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KANEKO Yoshio
Spin Super Structure Project, Exploratory Research for Advanced Technology (ERATO)
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TOKURA Yoshinori
Spin Super Structure Project, Exploratory Research for Advanced Technology (ERATO)
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Kubota Masato
Spin Superstructure Project Erato Japan Science And Technology Agency Aist Tsukuba Central 4:(presen
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ARIMA Takahisa
Spin Superstructure Project, ERATO, Japan Science and Technology Agency (JST)
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He Jin
Spin Superstructure Project Erato Japan Science And Technology Agency Aist Tsukuba Central 4
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Jung Jong
Spin Superstructure Project Erato Japan Science And Technology Agency Aist Tsukuba Central 4:(presen
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Tokura Yoshinori
Spin Superstructure Project Erato Japan Science And Technology Agency Aist Tsukuba Central 4:departm
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Arima Takahisa
Spin Superstructure Project Erato Japan Science And Technology Agency Aist Tsukuba Central 4:institu
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MATSUBARA Masakazu
Spin Superstructure Project, ERATO, Japan Science and Technology Agency, AIST Tsukuba Central 4
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Matsubara Masakazu
Spin Superstructure Project Erato Japan Science And Technology Agency Aist Tsukuba Central 4:departm
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Kaneko Yoshio
Spin Superstructure Project Erato Japan Science And Technology Agency Aist Tsukuba Central 4
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TOKURA Yoshinori
Spin Superstructure Project, ERATO, Japan Science and Technology Agency, AIST Tsukuba Central 4:Department of Applied Physics, University of Tokyo:Correlated Electron Research Center (CERC), AIST Tsukuba Central 4
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Arima Taka-hisa
Spin Superstructure Project, ERATO, Japan Science and Technology Agency, AIST Tsukuba Central 4
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Jung Jong-Hoon
Spin Superstructure Project, ERATO, Japan Science and Technology Agency, AIST Tsukuba Central 4
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ARIMA Takahisa
Spin Superstructure Project, ERATO, Japan Science and Technology Agency, AIST Tsukuba Central 4:Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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MATSUBARA Masakazu
Spin Superstructure Project, ERATO, Japan Science and Technology Agency, AIST Tsukuba Central 4:Department of Applied Physics, University of Tokyo
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