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Optical and vibrational spectra of Bi1.8Fe1.2(1 – x)Ga1.2x SbO7 solid solutions with pyrochlore-type structure

  • Physical Methods of Investigation
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Abstract

Optical and vibrational spectra of Bi1.8Fe1.2(1 – x)Ga1.2x SbO7 solid solutions with pyrochlore structure have been studied. It has been shown that the compounds have strongly disordered structure. It has been established that a decrease in iron content causes a marked shift of Bi1.8Fe1.2(1 – x)Ga1.2x SbO7 absorption edge. According to assessment of band gap width, Bi1.8Ga1.2SbO7 is the most wide-band compound (2.90 eV), while Bi1.8Fe1.2SbO7 is the most narrow-band compound (1.88 eV).

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, 119991, Russia

    A. V. Egorysheva & O. M. Gaitko

  2. Djakov Institute of Electronics, Bulgarian Academy of Sciences, Sofia, 1784, Bulgaria

    T. I. Milenov

  3. Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, Sofia, 1784, Bulgaria

    P. M. Rafailov

  4. Kaishev Institute of Physical Chemistry, Bulgarian Academy of Sciences, Sofia, 1113, Bulgaria

    G. V. Avdeev

  5. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow, 115409, Russia

    T. D. Dudkina

Authors
  1. A. V. Egorysheva
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  2. T. I. Milenov
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  3. P. M. Rafailov
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  4. O. M. Gaitko
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  5. G. V. Avdeev
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  6. T. D. Dudkina
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Corresponding author

Correspondence to A. V. Egorysheva.

Additional information

Original Russian Text © A.V. Egorysheva, T.I. Milenov, P.M. Rafailov, O.M. Gaitko, G.V. Avdeev, T.D. Dudkina, 2017, published in Zhurnal Neorganicheskoi Khimii, 2017, Vol. 62, No. 7, pp. 961–964.

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Egorysheva, A.V., Milenov, T.I., Rafailov, P.M. et al. Optical and vibrational spectra of Bi1.8Fe1.2(1 – x)Ga1.2x SbO7 solid solutions with pyrochlore-type structure. Russ. J. Inorg. Chem. 62, 960–963 (2017). https://doi.org/10.1134/S0036023617070063

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  • DOI: https://doi.org/10.1134/S0036023617070063

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