Synthesis of(Sr,Ba)1-xEuxTiO3 at High Pressure and High Temperature and Its XPS study

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (8): 1195.

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Synthesis of(Sr,Ba)_1-xEu_xTiO₃ at High Pressure and High Temperature and Its XPS study

LI Li-Ping¹, WEI Quan², REN Xiao-Lin³, YAO Zhi-Guo¹, JIANG Chuan-Bin¹, SU Wen-Hui¹

1. Department of Physics, Jilin University, Changchun, 130023;
2. Analysis Measurement Center, Jilin University, Changchun, 130023;
3. Department of Chemistry, Jilin University, Changchun, 130023

Received:1993-08-21 Revised:1994-02-01 Online:1994-08-24 Published:1994-08-24

Abstract

Abstract: The high pressure and high temperature method was first used to synthesize the compounds of Sr_1-xEu_xTiO₃(x=0.0, 0.1, 0.2, 0.3, 0.4, 0.5) and Ba0.3Eu0.7TiO₃.The analysis of X-ray diffraction shows that all of the samples are in single phase and belong to cubic system.The measurement of XPSindicates tht there is a mixing valence of Eu(Ⅱ) and Eu(Ⅲ);and the interaction between Sr ion and oxygen anion was influenced by doping Eu³⁺and the binding energy of Sr is increased with x increasing.

Key words: Valence fluctuation, XPS, Synthesizing at high pressure and high temperature

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LI Li-Ping, WEI Quan, REN Xiao-Lin, YAO Zhi-Guo, JIANG Chuan-Bin, SU Wen-Hui. Synthesis of(Sr,Ba)_1-xEu_xTiO₃ at High Pressure and High Temperature and Its XPS study[J]. Chem. J. Chinese Universities, 1994, 15(8): 1195.

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Synthesis of(Sr,Ba)_1-xEu_xTiO₃ at High Pressure and High Temperature and Its XPS study

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