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Dependence of the electrophysical properties and crystal structure of Ca1 − x Y x TiSi1 − x Fe x O5 solid solutions on their composition

  • Structure of Matter and Quantum Chemistry
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Abstract

The results of the electrophysical and X-ray diffraction studies of the pseudobinary system CaTiSiO5-YFeTiO5 are given. All the synthesized Ca1 − x Y x TiSi1 − x Fe x O5 solid solutions (0 ⩽ x ⩽ 1) were found to be semiconductors. The replacement of Ca and Si atoms by Y and Fe atoms led to a significant change in the electric conductivity, dielectric permittivity, forbidden gap, and molar polarization; a complete replacement of Ca and Si atoms led to growth of electric conductivity of the samples by four orders of magnitude. At 1170 K, the CaTiSiO5-YFeTiO5 system was found to consist of two homogeneous phases with wide homogeneity regions: the α phase samples were diamagnets, and the β phase samples were ferromagnets. The crystallographic parameters of the synthesized solid solutions were also determined.

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Authors and Affiliations

  1. Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka, Moscow oblast, Russia

    R. A. Grigoryan

  2. Institute of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, Russia

    L. A. Grigoryan

Authors
  1. R. A. Grigoryan
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  2. L. A. Grigoryan
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Correspondence to R. A. Grigoryan.

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Original Russian Text © R.A. Grigoryan, L.A. Grigoryan, 2015, published in Zhurnal Fizicheskoi Khimii, 2015, Vol. 89, No. 4, pp. 668–672.

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Grigoryan, R.A., Grigoryan, L.A. Dependence of the electrophysical properties and crystal structure of Ca1 − x Y x TiSi1 − x Fe x O5 solid solutions on their composition. Russ. J. Phys. Chem. 89, 663–667 (2015). https://doi.org/10.1134/S0036024415040093

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  • DOI: https://doi.org/10.1134/S0036024415040093

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