X-ray Absorption Near Edge Structure of Amorphous CexRu100-x
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概要
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We report the x-ray absorption near edge structure at the Ce L3 edge for amorphous alloys CexRu100-x ($x=9$, 43, and 80) and a C15 Laves phase compound CeRu2, which consists of a couple of peaks characteristic of 4f1 and 4f0 configurations. This indicates that Ce atoms of these materials are in a mixed valence state. The spectra are fitted to one arctangent and two Lorentzian functions. The Ce valence estimated from relative areas of the Lorentzian peaks varies linearly with Ce content. The transition into the continuum along with both peaks shifts to lower energy with increasing Ce concentration. We find a linear relation between the transition energy and the valence.
- 2009-09-15
著者
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OHNISHI Naoyuki
Department of Mechanical Engineering, Chubu University
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Murayama Shigeyuki
Department Of Materials Science And Engineering
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Li Yingjie
Department Of Clinical Laboratory Qilu Hospital Shandong University
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Nakai Ikuo
Department Of Electrical And Electonic Engineering Tottori University
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Murayama Shigeyuki
Department of Materials Science and Engineering, Muroran Institute of Technology, Muroran, Hokkaido 050-8585
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Amakai Yusuke
Department of Materials Science and Engineering, Muroran Institute of Technology, Muroran, Hokkaido 050-8585
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Li Yingjie
Department of Electronics and Informatics, Graduate School of Engineering, Tottori University, Tottori 680-8552
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Nakai Ikuo
Department of Electronics and Informatics, Graduate School of Engineering, Tottori University, Tottori 680-8552
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Ohnishi Naoyuki
Department of Electronics and Informatics, Graduate School of Engineering, Tottori University, Tottori 680-8552
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