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Robust and Tunable Ferroelectricity in Ba/Co Codoped (K_0.5Na_0.5)NbO₃ Ceramics

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【Author】 Jiaxun Liu;Jielin Zha;Yulong Yang;Xiaomei Lu;Xueli Hu;Shuo Yan;Zijing Wu;Fengzhen Huang;National Laboratory of Solid State Microstructures and School of Physics, Nanjing University;Collaborative Innovation Center of Advanced Microstructures, Nanjing University;

【通讯作者】吕笑梅;黄凤珍;

【机构】 National Laboratory of Solid State Microstructures and School of Physics, Nanjing University； Collaborative Innovation Center of Advanced Microstructures, Nanjing University；

【摘要】 <正>The 0.98(K_0.5Na_0.5)NbO₃-0.02Ba(Nb_0.5Co_0.5)O_3-δ ceramics with doped Ba²⁺ and Co²⁺ ions are fabricated,and the impacts of the thermal process are studied.Compared with the rapidly cooled （RC） sample,the slowly cooled （SC） sample possesses superior dielectric and ferroelectric properties,and an 11 K higher ferroelectricparaelectric phase transition temperature,which can be attributed to the structural characteristics such as the grain size and the degree of anisotropy.更多还原

【关键词】 ceramics； dielectric； ferroelectric； attributed； slowly； anisotropy； cooled； NbO₃ Ceramics； Na；

【基金】 supported by the National Key R&D Program of China (Grant No. 2022YFA1402903);the National Natural Science Foundation of China (Grant Nos. 52172116 and 62171214);the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)

【文献出处】 Chinese Physics Letters ,中国物理快报(英文版) , 编辑部邮箱 ,2024年07期

【分类号】O469
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Robust and Tunable Ferroelectricity in Ba/Co Codoped (K0.5Na0.5)NbO3 Ceramics

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Robust and Tunable Ferroelectricity in Ba/Co Codoped (K_0.5Na_0.5)NbO₃ Ceramics