Multi-ferroic and optical spectroscopy properties of (Bi^sub 0.5^Sr^sub 0.5^) (Fe^sub 0.5^Ti^sub 0.5^) O^sub 3^ solid solution

Solid solution of (Bi0.5Sr0.5) (Fe0.5Ti0.5) O3 (BFST) ceramic is explored here to obtain multiferroic and optical properties of the sample. The polycrystalline sample BFST was prepared by a standard solid state reaction route. Room temperature XRD, Raman and FTIR spectra of the compound exhibit an a...

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Bibliographic Details
Published in:Journal of alloys and compounds 2017-03, Vol.696, p.338
Main Authors: Parida, BN, Parida, RK, Panda, AB
Format: Article
Language:English
Subjects:
Absorbance
Catalysis
Ceramics
Chemical compounds
Crystal structure
Gold
Grain boundaries
Iron
Optical properties
Polycrystals
Reflectance
Sintering
Solid state
Spectroscopic analysis
Strontium titanates
Temperature
Titanium
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Summary:Solid solution of (Bi0.5Sr0.5) (Fe0.5Ti0.5) O3 (BFST) ceramic is explored here to obtain multiferroic and optical properties of the sample. The polycrystalline sample BFST was prepared by a standard solid state reaction route. Room temperature XRD, Raman and FTIR spectra of the compound exhibit an appreciable change in its crystal structure of SrTiO3 on addition of BiFeO3 in equal ratio. The surface morphology of the gold-plated sintered pellet sample recorded by SEM and EDX exhibits a uniform distribution of small grains with well defined grain boundaries. Detailed studies on nature of polarization, magnetization and variation of dielectric constant, tangent loss with temperature as well as frequency indicate the existence of multiferroicity in the studied compound. The optical property of the sample has been studied by using UV-vis spectroscopy technique. Using diffuse reflectance and absorbance data, the optical band gap of the studied sample has been estimated as 2.87 eV which is useful for photo catalytic application.
ISSN:0925-8388
1873-4669