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Enhanced Ferromagnetic Order in Mn Doped BiFeO3-Ni0.5Zn0.5Fe2O4 Multiferroic Composites

Title
Enhanced Ferromagnetic Order in Mn Doped BiFeO3-Ni0.5Zn0.5Fe2O4 Multiferroic Composites
Authors
Dhanalakshmi, B[Dhanalakshmi, B.]Rao, PSVS[Rao, P. S. V. Subba]Rao, BP[Rao, B. Parvatheeswara]Kim, C[Kim, CheolGi]
DGIST Authors
Kim, C[Kim, CheolGi]
Issue Date
2016-10
Citation
Journal of Nanoscience and Nanotechnology, 16(10), 11089-11093
Type
Article
Article Type
Article
Keywords
Bismuth CompoundsDielectric MeasurementsFerriteFerromagnetic OrderingsFourier Transform Infrared SpectroscopyIron CompoundsMagnetic MaterialsMagnetizationMagnetoelectric CouplingsManganeseManganese OxideMultiferroic CompositesMultiferroic PropertiesMultiferroicsNanocompositesNickelPolarizationSaturation MagnetizationSol-Gel Auto-CombustionSol-Gel AutocombustionSol-Gel ProcessSol-GelsStructural ModificationsX Ray Diffraction AnalysisZinc
ISSN
1533-4880
Abstract
Multiferroic composites of 0.5 BiFeO3-0.5Ni0.5Zn0.5Fe2O4 and 0.5Bi0.95Mn0.05FeO3-0.5 Ni0.5Zn0.5Fe2O4 were prepared by combining sol-gel autocombustion and solid state methods. X-ray diffraction analysis of the composites reveals that the samples are formed as di-phase compounds while retaining the spinel phase for the Ni-Zn ferrite and perovskite phase for the Bi-ferrite. Fourier transform infrared spectroscopy measurements on the composites confirm their structures with the presence of Fe-O and Bi-O bonds. Dielectric measurements on the composites were used to discuss about the possible polarization/conduction mechanisms, phase transitions and magnetoelectric coupling. Room temperature ferroelectric and magnetic hysteresis loop studies on the samples ensure that the Mn doped composite exhibits enhanced remnant polarization as well as saturation magnetization compared to the undoped composite. Moreover, the Mn doping has further translated the composite into magnetically softened with coercivity almost close to zero. The obtained improvements in the dielectric and multiferroic properties of the composites are attributed to the corresponding structural modifications brought about by the Mn doping. Copyright © 2016 American Scientific Publishers All rights reserved.
URI
http://hdl.handle.net/20.500.11750/2177
DOI
10.1166/jnn.2016.13295
Publisher
American Scientific Publishers
Files:
There are no files associated with this item.
Collection:
Emerging Materials ScienceLab for NanoBio-Materials & SpinTronics(nBEST)1. Journal Articles


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