Periodic Arrangement of Quadrupolar Moments Induced by the Antiferromagnetic Order in TbB_2C_2 : Observation by Resonant X-ray Scattering(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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We have investigated the antiferromagnetic ground state, phase IV, of TbB_2C_2 by resonant X-ray scattering to study the background of its anomalous magnetic structure. Polarization analysis was carried out to clarify the origin of the superlattice and forbidden reflections that appear below the Neel temperature. We observed magnetic reflections of (1 0 0.5) and (0 0 0.5), consistently with the neutron diffraction experiment by Kaneko et al. In addition, we have detected the (1 0 0) forbidden reflection in the unrotated σ-σ′ channel, which was not observed by neutron diffraction. From the detailed analysis of the resonant X-ray scattering, we conclude that this reflection originates from the ordering of the quadrupolar moment that accompany the canted antiferromagnetic structure of TbB_2C_2 because of the strong spin-orbit coupling. No lattice distortion was detected.
- 社団法人日本物理学会の論文
- 2005-05-15
著者
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NAKAO Hironori
Department of Physics, Tohoku University
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MURAKAMI Youichi
Department of Physics, Tohoku University
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MATSUMURA Takeshi
Department of Quantum Matter, ADSM, Hiroshima University
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OKUYAMA Daisuke
Department of Physics, Graduate School of Science, Tohoku University
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Wakabayashi Yusuke
Photon Factory Institute Of Materials Structure Science
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Sawa H
Institute Of Materials Structure Science Kek
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Sawa H
Photon Factory Institute Of Materials Structure Science
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Sawa Hiroshi
Department Of Physics Aoyama-gakuin University
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Nakao H
Photon Factory Institute Of Materials Structure Science Kek
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Nakao Hironori
Department Of Physics Graduate School Of Science Tohoku University
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Matsumura Takeshi
Adsm Hiroshima University
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ONODERA Hideya
Department of Physics, Graduate School of Science, Tohoku University
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TOBO Aya
Department of Physics, Graduate School of Science, Tohoku University
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Tobo Aya
Department Of Physics Graduate School Of Science Tohoku University
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Okuyama Daisuke
Department Of Physics Faculty Of Science Tohoku University:(present Office)cross-correlated Material
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Nakao H
Department Of Physics Graduate School Of Science Tohoku University
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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 Yusuke
Institute of Materials Structure Science, High Energy Accelerator Research Organization
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SAWA Hiroshi
Institute of Materials Structure Science, High Energy Accelerator Research Organization
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Wakabayashi Yusuke
Photon Factory Institute Of Materials Structure Science High Energy Accelerator Research Organizatio
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Matsumura T
Adsm Hiroshima University
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Onodera Hideya
Department Of Physics Graduate School Of Science Tohoku University
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Wakabayashi Y
Photon Factory Institute Of Materials Structure Science High Energy Accelerator Research Organizatio
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Wakabayashi Yusuke
Institute Of Materials Structure Science High Energy Accelerator Research Organization
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Sawa Hiroshi
Photon Factory Institute Of Materials Structure Science
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Murakami Youichi
Department Of Aerospace Engineering College Of Engineering Osaka Prefecture University
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Sawa Hiroshi
Institute For Solid State Physics University Of Tokyo
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Matsumura Takeshi
Department Of Physics Graduate School Of Science Tohoku University
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Sato Hirohiko
Department Of Chemistry Graduate School Of Science And Engineering Tokyo Institute Of Technology
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Matsumura Takeshi
Department Of Cardiovascular Surgery Shin-tokyo Hospital
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Matsumura Takeshi
Department Of Agrobiology And Bioresources Faculty Of Agriculture Hokkaido University
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MURAKAMI Youichi
Department of Physics, Graduate School of Science, Tohoku University
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