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Structural phase evolution of strontium-doped lead titanate thin films prepared by the soft chemical technique

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Abstract

Strontium-modified lead titanate thin films with composition Pb1−xSrxTiO3 were grown on Pt/Ti/SiO2/Si substrates using the polymeric precursor method. The structural phase evolution as a function of the Sr contents was studied using micro-Raman scattering, specular reflectance infrared Fourier transform spectroscopy, and x-ray diffraction. The results showed a gradual change from tetragonal to cubic structure, the transition occurring at about x = 0.58. The infrared reflectance spectra showed that the frequency of several peaks decreases as the strontium concentration increases. These features are correlated with a decrease in the tetragonal distortion of the TiO6 octahedra as the strontium concentration increases.

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Authors and Affiliations

  1. Laboratório Interdisciplinar de Eletroquímica e Cerâmica (LIEC), Centro Multidisciplinar Para Desenvolvimento de Materiais Cerâmicos (CMDMC), Departamento de Química, Universidade Federal de São Carlos (UFSCar), Via Washington, Km 235, CP-676, CEP-13565-905, São Carlos, S. P., Brazil

    F. M. Pontes, E. R. Leite & E. Longo

  2. Laboratório Interdisciplinar de Eletroquímica e Cerâmica (LIEC), Centro Multidisciplinar Para Desenvolvimento de Materiais Cerámicos (CMDMC), Departamento de Química, Universidade Federal de São Carlos (UFSCar), Via Washington, Km 235, CP-676, CEP-13565-905, São Carlos, S. P., Brazil

    S. H. Leal

  3. Laboratório Interdisciplinar de Eletroquímica e Cerâmica (LIEC), Centro Multidisciplinar Para Desenvolvimento de Materiais Cerámicos (CMDMC), Departamento de Química, Universidade Federal de São Carlos (UFSCar), Via Washington, Km 235, CP-676, CEP-13565-905, São Carlos, S. P., Brazil

    S. H. Leal

  4. Centro de Ciências da Natureza (CCN), Departamento de Química, Universidade Federal do Piauí (UFPI), Teresina, PI, Brazil

    P. S. Pizani & F. Lanciotti Jr.

  5. Departamento de Física, Universidade Federal de São Carlos (UFSCar), Via Washington Km 235, CEP-13565-905, São Carlos, S. P., Brazil

    T. M. Boschi

  6. Centro de Ciências da Natureza (CCN), Departamento de Química, Universidade Federal do Piauí (UFPI), Teresina, PI, Brazil

    M. R. M. C. Santos

  7. Instituto de Química, Universidade Estadual Paulista (UNESP), Araraquara, S. P., Brazil

    J. A. Varela

Authors
  1. F. M. Pontes
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  2. S. H. Leal
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  3. P. S. Pizani
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  4. M. R. M. C. Santos
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  5. E. R. Leite
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  6. E. Longo
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  7. F. Lanciotti Jr.
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  8. T. M. Boschi
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  9. J. A. Varela
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Corresponding author

Correspondence to E. Longo.

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Pontes, F.M., Leal, S.H., Pizani, P.S. et al. Structural phase evolution of strontium-doped lead titanate thin films prepared by the soft chemical technique. Journal of Materials Research 18, 659–663 (2003). https://doi.org/10.1557/JMR.2003.0087

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  • DOI: https://doi.org/10.1557/JMR.2003.0087

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