A study on structural, optical, and magnetic properties of MgFe2O4–BaTiO3 nanocomposites

In this work, the samples of MgFe 2 O 4 (MFO) x –BaTiO 3 (BTO) (100-x) (x = 10, 20, 30, 40, 50) are synthesized by a sol–gel process. According to the X-ray diffraction data, all composites have the tetragonal phase for BTO, and the spinel phase for MFO. In accordance with FESEM, the ferrite particl...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials research 2023-08, Vol.38 (15), p.3707-3719
Main Authors: Bitaraf, Mehrnaz, Ghazi, M. E., Izadifard, Morteza
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Barium titanates
Biomaterials
Chemistry and Materials Science
Diameters
Energy gap
Hysteresis loops
Inorganic Chemistry
Magnesium ferrites
Magnetic properties
Magnetic saturation
Materials Engineering
Materials research
Materials Science
Nanocomposites
Nanotechnology
Nyquist plots
Optical properties
Room temperature
Sol-gel processes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work, the samples of MgFe 2 O 4 (MFO) x –BaTiO 3 (BTO) (100-x) (x = 10, 20, 30, 40, 50) are synthesized by a sol–gel process. According to the X-ray diffraction data, all composites have the tetragonal phase for BTO, and the spinel phase for MFO. In accordance with FESEM, the ferrite particles become more agglomerated, and have an irregular shape as the MgFe 2 O 4 concentration increases. The hysteresis loops (M–H) measured at room temperature indicates an increase in the saturation magnetization with an increase in the MFO content. The band gap dependency on the MFO content is also studied using the UV–visible spectra, which show that the band gap energies are in the range of 2.17–2.70 eV. With an increase in MFO, the dielectric constant decreases, and the dielectric tangent loss increases. Also according to the Nyquist plots, as the MFO phase increases in the composites, the diameter of the semicircle also increase indicating the higher resistivity. Graphical Abstract
ISSN:0884-2914
2044-5326
DOI:10.1557/s43578-023-01093-8