Relaxor behavior in the (1−x)BaSnO₃ - xPbTiO₃ solid solution

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• 作者：Zujian Wang^a ; Xiuzhi Li^a ; Chao He^a ; Xifa Long ; ^a ; ^{lxf@fjirsm.ac.cn}
• 关键词：A. (1− ; x)BaSnO₃-xPbTiO₃ solid solution ; B. Relaxor ; D. Vogel– ; Fulcher law ; D. Curie– ; Weiss law
• 刊名：Solid State Communications
• 出版年：2011
• 出版时间：February 2011
• 年：2011
• 卷：151
• 期：4
• 页码：329-331
• 全文大小：372 K

文摘

The relaxor behavior was revealed in the solid solution (1−x)BaSnO₃-xPbTiO₃[(1−x)BSn-xPT] with compositions near x=0.50. The real permittivity (ε^′) and loss tangent (tanδ) exhibit diffuse and dispersive maxima, whose temperature shifts towards a higher temperature upon the increasing frequency. The frequency dependence of the temperature of the dielectric maximum (T_m) follows the Vogel–Fulcher law, as in the canonical relaxor. A deviation from the Curie–Weiss law was observed below the Burns temperature (T_B) and well above the Curie temperature (T_C). These phenomena are well consistent with typical relaxors, which explains the existence of the relaxor behavior in the (1−x)BSn-xPT solid solution.