Study of structural, electrical, magnetic and optical properties of BaFe12O19 and its modified systems with Ni and Ti

In this work, BaFe 12 O 19 (BaM) and its modified systems (by substitution of Ni and Ti) have been synthesized by solid-state reaction method. From Rietveld refinement of X-ray diffraction pattern, it is found that volume of unit cell increased slightly in case of modified systems. SEM images provid...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2018-02, Vol.124 (2), p.1-8, Article 162
Main Authors: Nayak, Debabrata, Pattanayak, Ranjit, Raut, Subhajit, Panigrahi, Simanchalo
Format: Article
Language:English
Subjects:
Applied physics
Barium hexaferrite
Characterization and Evaluation of Materials
Chemical synthesis
Condensed Matter Physics
Diffraction
Diffraction patterns
Grain boundaries
Machines
Magnetic properties
Manufacturing
Materials science
Nanotechnology
Optical and Electronic Materials
Optical properties
Physics
Physics and Astronomy
Processes
Substitution reactions
Surfaces and Interfaces
Thin Films
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Summary:In this work, BaFe 12 O 19 (BaM) and its modified systems (by substitution of Ni and Ti) have been synthesized by solid-state reaction method. From Rietveld refinement of X-ray diffraction pattern, it is found that volume of unit cell increased slightly in case of modified systems. SEM images provided the information about the microstructure of BaM and its modified systems. The electric, magnetic and optical properties have been carried out with the help of complex impedance spectroscopy, VSM and UV spectrum, respectively. From electrical analysis, it is perceived that Ni-substitution system has shown co-contribution of grain and grain boundary effect due to increases of grain size. The M – H loops are explored that, with substitution of Ni and Ti both M s and H c are decreased. From the variation of band gap ( E g ), it is observed that E g has been significantly decreased with substitution (least for Ni-substitution).
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-017-1524-y