Origin of the giant electro-optic Kerr effect in La-doped 75PMN-25PT transparent ceramics
Origin of the giant electro-optic Kerr effect in La-doped 75PMN-25PT transparent ceramics
复制标题
DOI：
10.1063/1.3646553
复制
发表时间：
2011-10
影响因子：
3.2
通讯作者：
W. Ruan;Guorong Li;Jiangtao Zeng;L. Kamzina;H. Zeng;K. Zhao;Liaoying Zheng;A. Ding
中科院分区：
文献类型：
--
作者：
W. Ruan;Guorong Li;Jiangtao Zeng;L. Kamzina;H. Zeng;K. Zhao;Liaoying Zheng;A. Ding
制备了La掺杂Pb（Mg 1/3 Nb 2/3）O3-PbTiO 3（PMN-PT）x/75/25透明陶瓷，研究了x/75/25的铁电畴、介电和铁电性能。对于3/75/25观察到的双磁滞回线和具有均匀分布的小指纹域指示中间铁电状态。在直流偏压下的介电行为和电滞回线随电场的变化表明，在3/75/25的范围内，样品发生了场致相变，并认为不稳定的中间铁电态是导致掺La PMN-PT 3/75/25中出现巨电光克尔效应的原因.
Transparent ceramics of La-doped Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) x/75/25 are prepared, and the ferroelectric domains, dielectric, and ferroelectric properties of x/75/25 are investigated. A double hysteresis loop and small fingerprint domains with uniform distribution observed for 3/75/25 indicate an intermediate ferroelectric state. The dielectric behavior under dc bias and the evolution of the hysteresis loop with increasing electric field for 3/75/25 indicate an electric field-induced phase transition, and it is proposed that the unstable intermediate ferroelectric state which would experience obvious field-induced phase transition is the origin of the giant electro-optic Kerr effect observed in La-doped PMN-PT 3/75/25.