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Spontaneous photorefractive effect in Sr1−x CaxTiO3 (x=0.014)

  • Magnetism and Ferroelectricity
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Abstract

The temperature dependence of the principal values of the refractive index in Sr1−x CaxTiO3 (x=0.014) has been measured in the 17–275 K range under various conditions of sample illumination with 1.96 eV photons. The spontaneous photorefractive contribution δn ph to the temperature-induced variation of the refractive index of Sr1−x CaxTiO3, which appears after illumination of the sample in the ferrophase (transition temperature T c=32 K) and persists in the paraphase under heating up to 150 K, has been separated. The photoinduced polarization has been estimated.

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Authors and Affiliations

  1. A. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, 194021, St. Petersburg, Russia

    M. E. Guzhva & P. A. Markovin

  2. Angewandte Physik, Gerhard-Mercator-Universität Duisburg, D-47048, Duisburg, Germany

    W. Kleemann

Authors
  1. M. E. Guzhva
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  2. P. A. Markovin
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  3. W. Kleemann
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Additional information

Fiz. Tverd. Tela (St. Petersburg) 39, 711–713 (April 1997)

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Guzhva, M.E., Markovin, P.A. & Kleemann, W. Spontaneous photorefractive effect in Sr1−x CaxTiO3 (x=0.014). Phys. Solid State 39, 625–627 (1997). https://doi.org/10.1134/1.1129942

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  • DOI: https://doi.org/10.1134/1.1129942

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