Simultaneous Occurrence of an Antiferroquadrupolar and a Ferromagnetic Transitions in Rare-Earth Palladium Bronze CePd_3S_4(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
スポンサーリンク
概要
- 論文の詳細を見る
Neutron powder diffraction experiments have been performed on CePd_3S_4 as well as measurements of magnetic and transport properties on a single-crystalline sample. Magnetic susceptibility increases markedly below T_C=6.3K and a spontaneous magnetization appears below T_C. The logarithmic temperature dependence of electrical resistivity implies that CePd_3S_4 is classified into a Kondo-lattice compound whose Kondo temperature is comparable to T_C. Magnetic susceptibility is analyzed satisfactorily with a crystalline electric field model that the 4f ground state of Ce^<3+> is the Γ_8 quartet with the excited Γ_7 doublet located at 630K. The magnetic structure of CePd_3S_4 was determined to be a canted structure with a canting angle of 51°. Such a canted structure is a result of the ferromagnetic (FM) ordering and simultaneous [100]-type antiferroquadrupolar (AFQ) ordering at T_C The smaller magnetization values and an unexpectedly high T_C can be explained by the simultaneous occurrence of AFQ and FM order.
- 社団法人日本物理学会の論文
- 2008-11-15
著者
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OHOYAMA Kenji
Institute for Materials Research, Tohoku University
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小野寺 秀也
東北大院理
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NAKAO Hironori
Department of Physics, Tohoku University
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Ohoyama K
Institute For Materials Research Tohoku University
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Ohoyama Kenji
Department Of Physics Faculty Of Science Tohoku University
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Nakao Hironori
Department Of Physics Graduate School Of Science Tohoku University
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MATSUOKA Eiichi
Department of Physics, Graduate School of Science, Tohoku University
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SASAKI Yuta
Department of Physics, Graduate School of Science, Tohoku University
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ONODERA Hideya
Department of Physics, Graduate School of Science, Tohoku University
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USUI Daichi
Department of Physics, Graduate School of Science, Tohoku University
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SHIDA Hiroshi
Department of Physics, Graduate School of Science, Tohoku University
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Ohyama Kenji
Imr Tohoku University
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Onodera Hideya
Department Of Physics Graduate School Of Science Tohoku University
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Oikawa K
Inst. Materials Structure Sci. Ibaraki
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Matsuoka Eiichi
Department Of Physics Graduate School Of Science Tohoku University
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Shida Hiroshi
Department Of Physics Graduate School Of Science Tohoku University
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Onodera H
The Research Institute For Iron Steel And Other Metals
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Ohoyama Kenji
Institute For Materials Of Physics Tohoku University
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Sasaki Yuta
Department Of Physics Graduate School Of Science Tohoku University
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Usui Daichi
Department Of Physics Graduate School Of Science Tohoku University
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