Enviar artigo por via de e-mail Electro-optic effect in SrTiO3 and Sr1–xCaxTiO3 (x = 0.014)
- Autores: Markovin P.A.1, Guzhva M.E.1,2,3
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Afiliações:
- Ioffe Physical-Technical Institute
- Peter the Great St. Petersburg Polytechnic University
- St. Petersburg National Research University of Information Technologies, Mechanics and Optics
- Edição: Volume 58, Nº 1 (2016)
- Páginas: 140-143
- Seção: Ferroelectricity
- URL: https://ogarev-online.ru/1063-7834/article/view/196840
- DOI: https://doi.org/10.1134/S1063783416010212
- ID: 196840
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Resumo
The results of the investigation of the quadratic electro-optic effect in Sr1–xCaxTiO3 with x = 0.014 (SCT) and in nominally pure SrTiO3 (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 (±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 τ ≈ 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.
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P. Markovin
Ioffe Physical-Technical Institute
Autor responsável pela correspondência
Email: P.Markovin@mail.ioffe.ru
Rússia, Politekhnicheskaya ul. 26, St. Petersburg, 194021
M. Guzhva
Ioffe Physical-Technical Institute; Peter the Great St. Petersburg Polytechnic University; St. Petersburg National Research University of Information Technologies, Mechanics and Optics
Email: P.Markovin@mail.ioffe.ru
Rússia, Politekhnicheskaya ul. 26, St. Petersburg, 194021; Politekhnicheskaya ul. 29, Moscow, 195251; Kronverkskii pr. 49, St. Petersburg, 197101
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