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Synthesis and characterization of BaTiO3/α-Fe2O3 core/shell structure

Abstract

Multiferroic materials attracted a lot of attention in recent years because of their significant scientific interest and technological applications. The multiferroic core/shell powders have a better connectivity between the phases, resulting in superior dielectric and magneto electric properties. In this study, the influence of preparation condition on structure and properties of BaTiO3/α-Fe2O3 core/shell composite materials was examined. The five samples were obtained by varying synthesis conditions, such as synthesized method (co-precipitation and sonochemical method) and pH values of solution. XRD and Raman spectroscopy analyses were performed in order to determine phase composition and structural changes within samples. Morphology modifications were examined by SEM and EDS analyses. Finally, effect of structural and microstructural changes on magnetic and electrical properties was detected and explained.

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Acknowledgements

This research was performed within the project No. 172057 financed by the Ministry of Education, Science and Technological Development of the Republic of Serbia and NSF CREST (HRD-0833184), NASA (NNX09AV07A) and NSF-PREM1523617 awards.

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Correspondence to Suzana Filipović.

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Filipović, S., Pavlović, V.P., Mitrić, M. et al. Synthesis and characterization of BaTiO3/α-Fe2O3 core/shell structure. J Adv Ceram 8, 133–147 (2019). https://doi.org/10.1007/s40145-018-0301-5

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  • DOI: https://doi.org/10.1007/s40145-018-0301-5

Keywords

  • ceramics
  • electronic materials
  • magnetic materials
  • Raman spectroscopy
  • X-ray diffraction (XRD)
  • ferroelectricity