Liquid-phase model for thermally stimulated autosegregation on BaTiO3, SrTiO3, and PbTiO3 surfaces

被引:0
作者
Yu. Ya. Tomashpolsky
N. V. Sadovskaya
机构
[1] Russian State Scientific Center,Karpov Research Institute of Physical Chemistry
来源
Inorganic Materials | 2006年 / 42卷
关键词
Barium Titanate; Lead Titanate; Intermittent Contact Mode; Elementary Diffusion Event; Auger Amplitude;
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摘要
We consider the possible models for thermally stimulated surface autosegregation (TSAS) and evaluate their credibility using new experimental data. Particular attention is paid to a liquid-phase model, which accounts for both the reversible and irreversible stages of TSAS and is capable of predicting the segregating species and the degree and temperature range of segregation. In the crystal-chemical approach, the basic mechanism of TSAS in this model is diffusion of the segregating species.
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页码:1104 / 1109
页数:5
相关论文
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