Temperature-Dependent Phase Formation, Surface Morphological and Magnetic Studies of Bismuth Iron Oxide Grown by Co-precipitation Method

Temperature-Dependent Phase Formation, Surface Morphological and Magnetic Studies of Bismuth Iron... In the present study, the co-precipitation method has been used to grow BiFeO3 powders, which are pressed into pellets and sintered at 450, 500 and 550 °C for 2 h in a muffle furnace. The crystalline nature is studied by x-ray diffraction (XRD), which depicts multiphase formation. The un-annealed sample shows highest peak belonging to BiFeO3, while smaller peaks of Bi2Fe4O9 and Bi24(Bi1.04Fe0.84)O40 are also evident. With increase in sintering temperature 450 − 550 °C, the major peak belonging to BiFeO3 decreases and peaks intensities of other phases increase indicating that some phases grow at the expense of others. The surface morphology, as determined by scanning electron microscopy (SEM), reveals grains of varying sizes and shapes. The vibrating sample magnetometer (VSM) is used elucidate the magnetic characteristics, which have been observed to strongly depend upon the sintering temperature. The phase formation behaviours of this material system may be useful to optimize the fabrication conditions for the realization of single-phase BiFeO3. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Superconductivity and Novel Magnetism Springer Journals

Temperature-Dependent Phase Formation, Surface Morphological and Magnetic Studies of Bismuth Iron Oxide Grown by Co-precipitation Method

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Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media New York
Subject
Physics; Strongly Correlated Systems, Superconductivity; Magnetism, Magnetic Materials; Condensed Matter Physics; Characterization and Evaluation of Materials
ISSN
1557-1939
eISSN
1557-1947
D.O.I.
10.1007/s10948-017-4067-8
Publisher site
See Article on Publisher Site

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