Optimization of electrooptic and pieozoelectric coupling effects in tetragonal relaxor-PT ferroelectric single crystals

被引：7
|
作者：
Sun, Enwei [1 ]
Sang, Shijing [1 ]
Yuan, Zhongyuan [1 ]
Qi, Xudong [1 ]
Zhang, Rui [1 ]
Cao, Wenwu [1 ,2 ]
机构：
[1] Harbin Inst Technol, Condensed Matter Sci & Technol Inst, Harbin 150080, Peoples R China
[2] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 640卷
基金：
中国博士后科学基金;
关键词：
Electrooptic; Piezoelectric; Coupling effect; PMN-PT; PZN-PT; ORIENTATION DEPENDENCE; OPTICAL-PROPERTIES; TEMPERATURE; NIOBATE;
D O I：
10.1016/j.jallcom.2015.04.006
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The electrooptic and piezoelectric coupling effects in tetragonal relaxor-based ferroelectric 0.62Pb (Mg1/3Nb2/3)O-3-0.38PbTiO(3) (PMN-0.38PT) and 0.88Pb(Zn1/3Nb2/3)O-3-0.12PbTiO(3) (PZN-0.12PT) single-domain crystals have been analyzed by the coordinate transformation. The orientation dependence of the electrooptic and half-wave voltage was calculated based on the full sets of refractive indices, electrooptic and piezoelectric coefficients. The optimum orientation cuts for achieving the best electrooptic coefficient and half-wave voltage were found. The lowset half-wave voltage is only 76 V for the PMN-0.38PT single-domain crystal. Compared to commonly used electrooptic crystal LiNbO3, tetragonal relaxor-PT ferroelectric single-domain crystals are much superior for optical modulation applications because of their much higher linear electrooptic coefficients and substantially lower half-wave voltages when the piezoelectric strain influence is considered. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：64 / 67
页数：4
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