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Atomic Replacement Effect on Electron Charge Density of Perovskite Oxides
Yoshihiro Kuroiwa,Akikatsu Sawada,Eiji Nishibori,Hiroshi Tanaka,Jimpei Harada,Makoto Sakata,Masaki Takata,Shinobu Aoyagi 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.42 No.IV
Charge density distributions of cubic SrTiO3 have been investigated related to the atomic replacement eect on the phase transition, by analyzing the synchrotron-radiation X-ray powder-diraction data by the MEM(Maximum Entropy Method)/Rietveld method. The chemical bonding natures between constituent atoms in cubic SrTiO3 are compared with those in cubic BaTiO3 that we investigated previously at the same temperature. The Characteristic charge density distribution around the O atom, which may present a clue what kind of phase transition occurs in the cubic perovskite oxide, is found in SrTiO3.
Atomic Replacement Eect on Electron Charge Density of Perovskite Oxides
Yoshihiro Kuroiwa,Shinobu Aoyagiy,Akikatsu Sawada,Eiji Nishibori,Masaki Takata,Makoto Sakata,Hiroshi Tanaka,Jimpei Harada 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.42 No.IV
Charge density distributions of cubic SrTiO3 have been investigated related to the atomic replacement eect on the phase transition, by analyzing the synchrotron-radiation X-ray powder-diraction data by the MEM(Maximum Entropy Method)/Rietveld method. The chemical bonding natures between constituent atoms in cubic SrTiO3 are compared with those in cubic BaTiO3 that we investigated previously at the same temperature. The Characteristic charge density distribution around the O atom, which may present a clue what kind of phase transition occurs in the cubic perovskite oxide, is found in SrTiO3.