Lead titanate-induced abnormal ferroelectric/antiferroelectric phase transitions in Pb(Lu0.5Nb0.5)O-3 solid solutions
Lead titanate-induced abnormal ferroelectric/antiferroelectric phase transitions in Pb(Lu0.5Nb0.5)O-3 solid solutions
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Pb(Lu0.5Nb0.5)O-3 固溶体中钛酸铅诱导的异常铁电/反铁电相变
DOI：
10.1016/j.matdes.2019.108168
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发表时间：
2019
影响因子：
8.4
通讯作者：
Long Xifa
中科院分区：
文献类型：
--
作者：
Yang Xiaoming;Wang Chenxi;Zhuo Fangping;Liu Ying;Wang Zujian;Tailor Hamel N.;He Chao;Long Xifa
许多非中心对称化合物[1，2]与现代电子学和光学的基础材料有关。例如，铁电性[3]，压电性[4]和二阶非线性光学[5，6]行为是许多应用的基础。其中，FE态和AFE态的形成是相变物理研究的重要内容。反铁电/铁电材料的性能强烈依赖于相变过程，这主要取决于外部电场，压力和温度[7]。作为一种重要的电子材料，AFE材料由于其外部电场诱导的FE/AFE相位切换行为而被广泛研究用于储能电容器[8，9]、超快充放电设备[10，11]、电热冷却装置[12，13]和热释电安全传感器[14，15]。在早期的论文中，FE/AFE转变的研究集中在具有低PbTiO 3（PT）的Pb（Zr，Ti）O3（PZT）基AFE陶瓷上，并且已经报道了FE/AFE相变的许多特性[16-21]。例如，电场诱导的AFE到FE相变[16，17]、温度驱动的FE到AFE相变[18，20]和电场诱导的AFE到AFE相变过程[19，21]。然而，由于低击穿场，大多数PZT基AFE陶瓷在AFE/FE相位切换电场附近容易损坏[7]。因此，许多策略已被应用于改善其电性能，包括调整其结构和外场条件[22-24]。但是，其可调元件间距和电场范围相对较窄，这严重限制了其作为AFE材料的实际应用。
Many noncentrosymmetric compounds [1, 2] are related to basic materials of present electronics and optics. For example, ferroelectricity [3], piezoelectricity [4], and second-order nonlinear optical [5, 6] behavior are the basis of numerous applications. Therein, the formation of FE and AFE state is of great interest for the study of phase transition physics. The performance of anti-/ferroelectric materials is strongly dependent on phase transformation process, which is mainly determined by the external electric field, pressure and temperature [7]. As an important kind of electronic materials, AFE materials have been extensively investigated for applications in energy storage capacitors [8, 9], ultrafast charge-discharge equipment [10, 11], electrocaloric cooling devices [12, 13] and pyroelectric security sensors [14, 15] due to their external electric field-induced FE/AFE phase switching behavior. In early papers, the investigations on FE/AFE transitions have been focused on Pb (Zr, Ti) O3 (PZT)-based AFE ceramics with low PbTiO3 (PT) and numbers of peculiarities of FE/AFE phase transitions have been reported [16–21]. For example, the electric field-induced AFE to FE phase transition [16, 17], the temperature-driven FE to AFE phase transition [18, 20] and the electric field-induced AFE to AFE phase transition process [19, 21]. Nevertheless, most of PZT-based AFE ceramics are easily damaged near the AFE/FE phase switching electric field due to low breakdown fields [7]. Therefore, many strategies have been applied to improve their electrical performances, including adjusting their constitutions and external field conditions [22–24]. However, the adjustable component interval and electric field range are relatively narrow, which is severely limited in practical applications as an AFE material.