Combined Magnetic and Structural Characterization of Hidrothermal Bismuth Ferrite (BiFeO3) Nanoparticles

  • Jelena Maletaškić Centre of Excellence-CextremeLab Vinca, Materials Science Laboratory, Institute of Nuclear Sciences Vinča, University of Belgrade; Laboratory for Advanced Nuclear Energy, Institute of Inovative Research, Tokyo Institute of Technology, Japan
  • Maria Čebela Centre of Excellence-CextremeLab Vinca, Materials Science Laboratory, Institute of Nuclear Sciences Vinča, University of Belgrade
  • Marija Pekajski Đorđević Centre of Excellence-CextremeLab Vinca, Materials Science Laboratory, Institute of Nuclear Sciences Vinča, University of Belgrade
  • Denis Kozlenko Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research
  • Sergey Kichanov Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research
  • Miodrag Mitrić Vinča Institute of Nuclear Sciences, University of Belgrade, Laboratory for Theoretical and Condensed Matter Physics
  • Branko Matović Centre of Excellence-CextremeLab Vinca, Materials Science Laboratory, Institute of Nuclear Sciences Vinča, University of Belgrade

Abstract

Bismuth ferrite (BiFeO3) was synthesized by hydrothermal method. The crystal and magnetic structures of BiFeO3 have been studied by means of X-ray diffraction and neutron powder diffraction at ambient temperature. Microstructure was analysed by scanning electron microscopy. Quantitative phase analysis by the Rietveld method was conducted and crystallite sizes of 27 nm were determined from the XRD line broadening. The magnetic structure of BiFeO3 is described by the G-type antiferromagnetic order with magnetic peak located at 4.6 Å and a noticeable magnetic contribution to a reflection located at 2.4 Å in the diffraction pattern. The values of the ordered magnetic moment of Fe ions μFe=3.8(1) μB, obtained at ambient conditions, are consistent with those determined earlier. The magnetic moments in the crystal plane z = const are arranged in parallel, changing the direction from [100] to [1 ̅1 ̅0] when moving from one to the other z = const plane.

Published
2019-01-01
Issue
Vol 51 No 1 (2019)
Section
Articles

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