Determination of the Electro-Optical Coefficients of Barium Titanate

被引：0
|
作者：
Shirokov, V. B. [1 ,2 ]
Timoshenko, P. E. [2 ]
Kalinchuk, V. V. [1 ]
机构：
[1] Russian Acad Sci, Southern Sci Ctr, Rostov Na Donu, Russia
[2] Southern Fed Univ, Rostov Na Donu, Russia
来源：
DOKLADY PHYSICS | 2023年 / 68卷 / 05期
关键词：
electro-optic coefficient; phenomenological theory; barium titanate; Landau thermodynamic potential; PIEZOELECTRIC COEFFICIENTS; BATIO3; CRYSTALS;
D O I：
10.1134/S1028335823050142
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Within the framework of the theory of thermodynamics, a method for determining the electro-optical coefficients is proposed. It is shown that for all ferroelectrics the symmetry of which admits a diagonal susceptibility, the ratio of some electro-optical coefficients is expressed in terms of the ratio of susceptibilities. For barium titanate, the dependence of the electrooptical coefficients on the electric field has been revealed and studied. It is shown that large values of the electro-optical coefficients of barium titanate are associated with a nonlinear dependence of the dielectric susceptibility on the electric field.
引用
收藏
页码：159 / 163
页数：5
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