Valence State of Mn-Doped BiFeO3--BaTiO3 Ceramics Probed by Soft X-ray Absorption Spectroscopy
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概要
- 論文の詳細を見る
The valence state of Mn-doped BiFeO3--BaTiO3 ceramics has been probed by soft X-ray absorption spectroscopy (XAS). Mn-doped BiFeO3--BaTiO3 has valence states of Fe3+ and Ti4+, although BiFeO3 and Mn-doped BiFeO3 have mixed valence states of Fe2+ and Fe3+. The Mn 2p-XAS peak of Mn-doped BiFeO3--BaTiO3 locates at a lower energy side than that of Mn-doped BiFeO3 that corresponds to the Mn3+ valence state. These findings may indicate that the Fe3+ valence state of Mn-doped BiFeO3--BaTiO3 is stabilized by charge transfer from the Mn 3d state to the Fe 3d state through the Ti 3d state in BaTiO3.
- Japan Society of Applied Physicsの論文
- 2008-01-25
著者
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Yogo Toshinobu
Ecotopia Science Institute Nagoya University
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Higuchi Tohru
Advanced Light Source Lawrence Berkeley National Laboratory
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ITOH Naoyuki
EcoTopia Science Institute, Nagoya University
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SHIMURA Tetsuo
EcoTopia Science Institute, Nagoya University
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Hattori Takeshi
Department Of Applied Physics Faculty Of Science Science University Of Tokyo:(present)the Institute
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Sakamoto Wataru
Ecotopia Science Institute And Department Of Molecular Design And Engineering Graduate School Of Eng
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Higuchi Tohru
Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 7R0222, Berkeley, CA 94720, U.S.A.
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Hattori Takeshi
Department of Applied Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
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Itoh Naoyuki
EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Shimura Tetsuo
EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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