DETERMINATION OF THE ELECTRO-OPTICAL COEFFICIENTS OF BARIUM TITANATE

V. B. Shirokov; Широков В. Б.; P. E. Timoshenko; Тимошенко П. Е.; V. V. Kalinchuk; Калинчук В. В.

doi:10.31857/S2686740023030148

DETERMINATION OF THE ELECTRO-OPTICAL COEFFICIENTS OF BARIUM TITANATE

Авторлар: Shirokov V.¹^,2, Timoshenko P.², Kalinchuk V.¹
Мекемелер:
1. Southern Scientific Center of the Russian Academy of Sciences
2. Southern Federal University
Шығарылым: Том 510, № 1 (2023)
Беттер: 39-44
Бөлім: ФИЗИКА
URL: https://journals.rcsi.science/2686-7400/article/view/135937
DOI: https://doi.org/10.31857/S2686740023030148
EDN: https://elibrary.ru/OZDZEV
ID: 135937

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Аннотация
Авторлар туралы
Әдебиет тізімі
Қосымша файлдар
Статистика

Аннотация

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.

Негізгі сөздер

electro-optic coefficient, phenomenological theory, barium titanate, Landau thermodynamic potential

Әдебиет тізімі

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