Nonmonotonic variation of aging behavior in Fe-doped BaTiO3 ceramics
Nonmonotonic variation of aging behavior in Fe-doped BaTiO3 ceramics
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DOI：
10.1063/1.4890383
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发表时间：
2014-07
影响因子：
4
通讯作者：
F. Huang;Zhenghao Jiang;Xiaomei Lu;R. Ti;Huarui Wu;Y. Kan;Jinsong Zhu
中科院分区：
文献类型：
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作者：
F. Huang;Zhenghao Jiang;Xiaomei Lu;R. Ti;Huarui Wu;Y. Kan;Jinsong Zhu
对铁掺杂BaTiO_3陶瓷的铁电老化效应的研究表明，随着铁掺杂量的增加，铁电老化效应先增强后抑制。这种时效行为的非单调变化被认为是源于氧空位浓度增加和c/a值降低对缺陷偶极子（FeTi′−Vo··）·形成的竞争效应。本研究为调节时效效应提供了一种可行的替代方法，将有利于铁电材料的应用。
The investigation of ferroelectric aging effect in Fe-doped BaTiO3 ceramics reveals that such effect is first strengthened and then suppressed with the increase content of Fe dopant. Such nonmonotonic variation of aging behavior is considered to be originated from the competition effects between increased concentration of oxygen vacancies and decreased c/a value on the formation of defect dipoles (FeTi′−Vo··)·. This study provides a feasible alternative method for modulating aging effect and will favor the applications of ferroelectrics.