Open AccessQualitative Analysis of Magnetic Moment in BaxTiO3 - Ni xFe3- xO4 Nanocomposite Synthesized by Novel low Temperature Technique
Author(s) -
Ashwin Sudhakaran,
AUTHOR_ID,
Allwin Sudhakaran,
E. Siva Senthil,
AUTHOR_ID,
AUTHOR_ID
Publication year - 2022
Publication title -
international journal of recent technology and engineering
Language(s) - English
Resource type - Journals
ISSN - 2277-3878
DOI - 10.35940/ijrte.d6628.0110522
Subject(s) - superparamagnetism , materials science , nanocomposite , barium titanate , particle size , magnetic hyperthermia , barium ferrite , phase (matter) , coercivity , magnet , composite number , ferrite (magnet) , nanotechnology , composite material , nanoparticle , magnetization , chemical engineering , magnetic nanoparticles , condensed matter physics , ceramic , chemistry , magnetic field , physics , organic chemistry , quantum mechanics , engineering
A novel low temperature preparation technique (<500ºC) is employed for synthesizing nanoscale Barium Titanate -Nickel ferrite composites, where the particle size is controllable. Two different ratios of hard and soft site composites (BTO-NFO 80:20, BTO-NFO 70:30) are synthesized and characterized to study their unique structural, morphological and magnetic properties. The structural refinement studies using XRD data showed 43 % of hard phase (anorthic structure) and 57% of soft phase (Cubic Structure) for BTO-NFO 80:20 and similarly 76% of hard phase and 24% of soft phase in the BTO-NFO 70:30 composite respectively. The SEM and EDAX are used to identify smaller particles of 10 nm using histogram and their sample purity. The VSM analysis at room temperature shows superparamagnetic behavior within the soft ferro magnet with maximum retentivity 2.39 emu/g and saturation magnetization, 10.71 emu/g stating that the composites can be used for various biological applications like drug delivery, hyperthermia, MRI, etc. The ratio Mr/Ms is much less than 0.5, which states that multidomain grains or single domains are formed and the particle interaction is by magneto-static interaction confirming its superparamagnetic nature.