Orbital and Charge Ordering in LaSr_2Mn_2O_7 Observed by Resonant X-Ray Scattering : Condensed Matter: Electronic Properties, etc.
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概要
- 論文の詳細を見る
Orbital and charge ordering phenomena in bilayered perovskite manganite LaSr_2Mn_2O_7 have been studied by resonant X-ray scattering. Superlattice reflections corresponding to these orderings are observed below 210 K. The in-plane and stacking structure of the orbital and charge order is determined from these reflections. The anisotropy of the anomalous atomic scattering factor of Mn^<3+> in the orbital ordered state is observed in the azimuthal angle dependence of the reflections. The anisotropy is attributed to the band dispersion of 4p level due to the layered structure as well as the orbital order. In the course of this study, we have found that charge and orbital orderings collapse simultaneously, maintaining the same correlation lengths with further decreasing temperature.
- 社団法人日本物理学会の論文
- 2000-09-15
著者
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遠藤 康夫
高エ研
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Wakabayashi Yusuke
Photon Factory Institute Of Materials Structure Science
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Wakabayashi Yusuke
Department Of Materials Structure Science The Graduate University For Advanced Studies:institute Of
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Kiyama Takashi
Erato Japan Science And Technology Agency:(present Office)research Center For Photovoltaics Aist
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Murakami Youichi
Photon Factory Institute Of Materials Structure Science High Energy Accelerator Research Organizatio
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Yusuke Wakabayashi
Department Of Physics Faculty Of Science And Technology Keio University : Photon Factory Institute O
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Wakabayashi N
Department Of Physies Faculty Of Science And Technology Keio University
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TOKURA Yoshinori
Joint Research Center for Atom Technology (JRCAT)
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MORITOMO Yutaka
Center for Integrated Research in Science and Engineering (CIRSE), Nagoya University
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KOYAMA Ichiro
Photon Factory, Institute of Materials Structure Science, High-Energy Accelerator Research Organizat
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KIMURA Tsuyoshi
Joint Research Center for Atom Technology (JRCAT)
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Wakabayashi Yusuke
Photon Factory Institute Of Materials Structure Science High Energy Accelerator Research Organizatio
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Kiyama T
Erato Japan Science And Technology Agency:(present Office)research Center For Photovoltaics Aist
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Endoh Yasuo
Core Research For Evolutional Science And Technology (jrcat) : Department Of Physics Tohoku Universi
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Endoh Yasuo
Physics Department Granduate School Of Science Tohoku University
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HIROTA kazuma
Core Research for Evolutional Science and Technology (JRCAT)
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Ando Yuji
Department Of Applied Physics The University Of Tokyo
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Wakabayashi Y
Photon Factory Institute Of Materials Structure Science High Energy Accelerator Research Organizatio
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Endoh Yasuo
Institute For Materials Research Tohoku University
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Endoh Yasuo
Physics Department Tohoku University
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Kiyama Takashi
Division Of Chemisity Graduate School Of Science Kyoto University
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Kimura Tsuyoshi
Joint Research Center For Atom Technology (jrcat) : (present Address) Department Of Applied Physics
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Tokura Yoshinori
Department Of Applied Physics University Of Tokyo:correlated Electron Research Center National Insti
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Koyama Ichiro
Photon Factory Institute Of Materials Structure Science High Energy Accelerator Research Organizatio
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Moritomo Yutaka
Center For Integrated Research For Science And Engineering (cirse) And Department Of Applied Physics
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Ando Y
Tokyo Univ. Information Sci. Chiba Jpn
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Kimura Tsuyoshi
Joint Research Center For Atom Technology
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