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This article is cited in 5 scientific papers (total in 5 papers)
Ferroelectricity
Electro-optic effect in SrTiO$_{3}$ and Sr$_{1-x}$Ca$_{x}$TiO$_{3}$ ($x$ = 0.014)
P. A. Markovina, M. E. Guzhvaabc a Ioffe Institute, St. Petersburg
b Peter the Great St. Petersburg Polytechnic University
c St. Petersburg National Research University of Information Technologies, Mechanics and Optics
Abstract:
The results of the investigation of the quadratic electro-optic effect in Sr$_{1-x}$Ca$_{x}$TiO$_{3}$ with $x$ = 0.014 (SCT) and in nominally pure SrTiO$_{3}$ (STO) at room temperature in applied direct-current (dc) and alternating-current (ac) electric fields have been presented. It has been shown that the quadratic (in polarization) electro-optic coefficients of STO and SCT crystals coincide within the accuracy of the determination ($\pm$ 5%). It has been found that, in nominally pure STO measured in a dc electric field, there is a relaxation of the electro-optic effect with a relaxation time $\tau\approx$ 30 s due to the formation of a space charge in the sample. No similar effect in SCT has been observed. A possible mechanism for the formation of a space charge in STO and SCT has been discussed.
Keywords:
Space Charge, Induce Polarization, Paraelectric Phase, Neon Laser, Photoexcited Charge Carrier.
Received: 16.07.2015
Citation:
P. A. Markovin, M. E. Guzhva, “Electro-optic effect in SrTiO$_{3}$ and Sr$_{1-x}$Ca$_{x}$TiO$_{3}$ ($x$ = 0.014)”, Fizika Tverdogo Tela, 58:1 (2016), 136–139; Phys. Solid State, 58:1 (2016), 140–143
Linking options:
https://www.mathnet.ru/eng/ftt10120 https://www.mathnet.ru/eng/ftt/v58/i1/p136
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