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Comprehensive characterization of BiFeO3 powder synthesized by the hydrothermal procedure

Maria Čebela“Vinča” Institute of Nuclear Sciences, Laboratory of Materials Science, BelgradeBojan JankovicFaculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, P. O. Box 137, 11001 Belgrade, SerbiaRadmila HercigonjaFaculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, P. O. Box 137, 11001 Belgrade, SerbiaMiodrag J. LukićInstitute of Technical Sciences of the Serbian Academy of Sciences and Arts, BelgradeZorana Dohcevic-MitrovicCenter for Solid State Physics and New Materials, Institute of Physics, University of Belgrade, Pregrevica 118, 11080 Belgrade, SerbiaDušan Milivojević“Vinča” Institute of Nuclear Sciences, Department of Radiation Chemistry and Physics, BelgradeBranko Matović“Vinča” Institute of Nuclear Sciences, Laboratory of Materials Science, Belgrade

Processing and Application of Ceramicsjournal2016en

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Litsenziya: cc-by-nc-nd

ABI

Annotatsiya

In this paper, bismuth ferrite (BFO) particles synthesized by controlled hydrothermal process, where the particles of small sizes and with high purity were obtained. Structural analysis showed that non-annealed powder can be perfectly fitted to rhombohedral space group R3c and contains a very small amount of secondary phase, whereas the final product (annealed at 800?C) represents single-phase perovskite powder with high crystallinity. HRTEM analysis confirmed existence of twin stacking faults, which are responsible for enhanced magnetic properties. EPR measurements suggested existence of electrons trapped by vacancies or defects. It has been proposed that existence of Fe3+?OV defect complex could be generated at elevated temperatures followed by formation of trivalent Fe ions, which intensely provide local 3d moments.

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Mavzular

Multiferroics and related materials

Identifikatorlar

DOI: 10.2298/pac1604201c

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