Neutron Scattering Study of the Crystal and Magnetic Structures in Itinerant-5f Antiferromagnets UNiGa_5 and UPtGa_5
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概要
- 論文の詳細を見る
The crystal and magnetic structures of 5f itinerant antiferromagnets UNiGa_5 and UPtGa_5 were studied by means of neutron scattering. The powder diffraction data were well explained by the HoCoGa_5 tetragonal structure with space group P4/mmm. In UNiGa_5, uranium spins in the simple tetragonal lattice have a Neel-type structure with a relatively large moment of 0.9 μ_B/U along the [0,0,1] direction. On the other hand, magnetic moments of uranium atoms in UPtGa_5 are aligned ferromagnetically in the (0,0,1) plane and are directed along the [0,0,1] direction in an antiferromagnetic sequence (↑↓). An ordered moment is 0.24 μ_B/U. The nearest-neighbor interaction might be different in these isostructural compounds.
- 社団法人日本物理学会の論文
- 2002-03-15
著者
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METOKI Naoto
Advanced Research Center, Japan Atomic Energy Research Institute
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HAGA Yoshinori
Advanced Science Research Center, Japan Atomic Energy Research Institute
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ONUKI Yoshichika
Advanced Science Research Center, Japan Atomic Energy Research Institute
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TOKIWA Yoshihumi
Advanced Science Research Center, Japan Atomic Energy Research Institute
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Takeda Yuuji
Graduate School Of Science Osaka University
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Mori N
Advanced Science Research Center Japan Atomic Energy Agency
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Haga Yoshinori
Advanced Science Research Center Japan Atomic Energy Research Institute
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ISHII Yoshinobu
Advanced Science Research Center, Japan Atomic Energy Research Institute
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Ishii Yoshinobu
Advanced Science Research Center Japan Atomic Energy Research Institute
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Ishii Yoshinobu
Advanced Science Research Center Japan Atomic Energy Agency
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Metoki Naoto
Advanced Research Center Japan Atomic Energy Research Institute
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Tokiwa Yoshihumi
Graduate School Of Science Osaka University
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Tokunaga Yo
Advanced Science Research Center Japan Atomic Energy Agency
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Mori Nobuo
Institute Of Solid State Physics University Of Tokyo
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Okuda Yusuke
Gradnate School Of Science Osaka University
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ONUKI Yoshichika
Advanced Science Research Center, Japan Atomic Energy Agency:Department of Physics, Graduate School of Science, Osaka University
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HAGA Yoshinori
Advance Science Research Center, Japan Atomic Energy Agency
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Tokiwa Yoshihumi
Advanced Science Research Center, Japan Atomic Energy Agency
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