Conducting Properties of SrCeO3 System Doped with Various Rare Earth Metals
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概要
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Relationship between electrical conductivities and local structure was studied for SrCeO3-based perovskite-type oxides doped with various rare earth metals, M (M=Sc3+, Yb3+, Y3+, Gd3+, Sm3+ and La3+). The conducting behavior was considered to be protonic bellow 973 K. The local distortion around dopant ions in perovskite-type oxide was evaluated by examining relative area of the Raman band at around 345 cm-1 which is connected with stretching vibrational modes of CeO6 octahedra. The maximal band area was obtained for Yb-doped SrCeO3. The electrical conductivity increased with increasing the relative area of this Raman band, and the maximal conductivity was observed for Yb3+ doped SrCeO3.
- 公益社団法人 日本セラミックス協会の論文
公益社団法人 日本セラミックス協会 | 論文
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