Electromechanical coupling coefficient k31eff for arbitrary aspect ratio resonators made of [001] and [011] poled (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 single crystals

被引：7
|
作者：
Chen, Chuanwen [1 ,2 ]
Zhang, Rui [1 ]
Wang, Zhu [1 ]
Cao, Wenwu [1 ,2 ]
机构：
[1] Harbin Inst Technol, Dept Phys, Harbin 150080, Heilongjiang, Peoples R China
[2] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA
来源：
JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 06期
关键词：
crystal resonators; dielectric polarisation; electromechanical effects; lead compounds; piezoelectric materials;
D O I：
10.1063/1.3086653
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The dependence of k(31)(eff) on the aspect ratio G=l(1)/l(2) has been calculated for resonators made of [001] poled 0.67Pb(Mg1/3Nb2/3)O-3-0.33PbTiO(3) (PMN-0.33PT) and [011] poled 0.71Pb(Mg1/3Nb2/3)O-3-0.29PbTiO(3) (PMN-0.29PT). Based on the derived unified formula, the lateral electromechanical energy conversion efficiency parallel to k(31)(eff)parallel to(2) decreases with G for [001] poled PMN-0.33PT but increases with G for [011] poled PMN-0.29PT.
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页数：4
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