Raman Evidence for Ba-Site Ce

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概要

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• To obtain evidence of the existence of Ce³⁺at Ba sites in BaTiO<inf>3</inf>, the nominal (Ba<inf>1-x</inf>Ce<inf>x</inf>)Ti<inf>1-x/4</inf>O<inf>3</inf>(BCT) and Ba(Ti<inf>1-x</inf>Ce<inf>x</inf>)O<inf>3</inf>(BTC) ceramics prepared under different conditions were investigated by Raman spectroscopy. A band at {\sim}840 cm^-1that appears in all BCT samples is evidence of the existence of Ce³⁺at Ba sites in the BaTiO<inf>3</inf>lattice. For BTC, Raman scattering experiments give convincing evidence that a small number of Ce ions inevitably enter Ba sites as Ce³⁺, which can be expressed by (Ba,Ce<inf>\delta</inf>)(Ti,Ce<inf>x-\delta</inf>)O<inf>3</inf>, where \delta \approx 2 \textperthousand.

• The Japan Society of Applied Physicsの論文
• 2013-11-25

著者

• Lu Da-yong

  Research Center For Materials Science And Engineering Jilin Institute Of Chemical Technology

• Sun Xiu-yun

  Research Center For Materials Science And Engineering Jilin Institute Of Chemical Technology

• Sun Xiu-Yun

  Research Center for Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China

• Lu Da-Yong

  Research Center for Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China

• Zhuang Xu-Li

  Department of Applied Chemistry, Jilin Institute of Chemical Technology, Jilin 132022, China

• Han Dan-Dan

  Research Center for Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China

• Zhang Ya-Fei

  Department of Applied Physics, Jilin Institute of Chemical Technology, Jilin 132022, China

関連論文

• Improvement of solid solution and dielectric properties of (Ba,Sr)(Ti,Ce)O_3 ceramics by slight La doping
• Electron Spin Resonance Investigations and Compensation Mechanism of Europium-Doped Barium Titanate Ceramics
• Tetragonal Phase Stabilization Caused by Pr Ions in Ba(Ti0.99Mn0.01)O3 with Mixed Phases
• Point Defect Characteristics of High-$k$ Double Rare-Earth-Doped BaTiO3 Ceramics with Diffuse Phase Transition by Electron Spin Resonance
• Mutual Solid Solubility and Phase Equilibrium in the System BaTiO3--BaCeO3
• Raman Evidence for Ba-Site Ce

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