DETERMINATION OF THE ELECTRO-OPTICAL COEFFICIENTS OF BARIUM TITANATE

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Within the framework of thermodynamic theory, a method for determining the electro-optical coefficients is proposed. It is shown that for all ferroelectrics whose symmetry 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.

作者简介

V. Shirokov

Southern Scientific Center of the Russian Academy of Sciences; Southern Federal University

Email: vkalin415@mail.ru
Russia, Rostov-on-Don; Russia, Rostov-on-Don

P. Timoshenko

Southern Federal University

Email: vkalin415@mail.ru
Russia, Rostov-on-Don

V. Kalinchuk

Southern Scientific Center of the Russian Academy of Sciences

编辑信件的主要联系方式.
Email: vkalin415@mail.ru
Russia, Rostov-on-Don

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版权所有 © В.Б. Широков, П.Е. Тимошенко, В.В. Калинчук, 2023