Relationship between anion and cation nonstoichiometries and valence state of titanium in perovskite-type oxynitrides LaTiO_2N
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概要
- 論文の詳細を見る
Three series of (La,Sr)TiO_2N compounds, with either anion nonstoichiometry LaTiO_<2+x>N_<1-x>, cation nonstoichiometry La_<1-x> Ti_<1+x>O_2N or an La_<1-x>Sr_xTiO_2N series, have been prepared in order to clarify, by XPS spectroscopy, the influence of composition on the valence state of titanium. Though the substitution of lanthanum by strontium was effective in the enhancement of reflectivity in the longer wavelength region above the absorption edge, the valence state of titanium did not change in either the La_<1-x>Ti_<1+x>O_2N or the La_<1-x>Sr_xTiO_2N series. However, it was found that the increase of oxygen content in the LaTiO_<2+X>N_<1-x> series causes oxidation of the titanium.
- 2009-01-01
著者
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MASUDA Yukihiro
Department of Chemical Science and Technology, Graduate School of Advanced Technology and Science, T
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MASHIMA Ryota
Department of Chemical Science and Technology, Graduate School of Advanced Technology and Science, T
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YAMADA Mayu
Department of Chemical Science and Technology, Graduate School of Advanced Technology and Science, T
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IKEUCHI Kaoru
Department of Chemical Science and Technology, Graduate School of Advanced Technology and Science, T
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MURAI Kei-ichiro
Department of Chemical Science and Technology, Graduate School of Advanced Technology and Science, T
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WATERHOUSE Geoffrey
Department of Chemistry, The University of Auckland
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METSON James
Department of Chemistry, The University of Auckland
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MORIGA Toshihiro
Department of Chemical Science and Technology, Graduate School of Advanced Technology and Science, T
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Metson James
Department Of Chemistry The University Of Auckland
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Yamada Mayu
Department Of Chemical Science And Technology Graduate School Of Advanced Technology And Science The
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Murai Kei-ichiro
Department Of Chemical Science And Technology Graduate School Of Advanced Technology And Science The
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Mashima Ryota
Department Of Chemical Science And Technology Graduate School Of Advanced Technology And Science The
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Ikeuchi Kaoru
Department Of Chemical Science And Technology Graduate School Of Advanced Technology And Science The
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Masuda Yukihiro
Department Of Chemical Science And Technology Graduate School Of Advanced Technology And Science The
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Moriga Toshihiro
Department Of Chemical Science And Technology Graduate School Of Advanced Technology And Science The
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Moriga Toshihiro
Department Of Chemical Science And Technology Faculty Of Engineering The University Of Tokushima
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Waterhouse Geoffrey
Department Of Chemistry The University Of Auckland
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Murai Kei-ichiro
Department Earth and Space Science, Graduate School of Science, Osaka University, Osaka 560-0043, Japan
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