Qualitative Analysis of Magnetic Moment in BaxTiO3 – Ni xFe3– xO4 Nanocomposite Synthesized by Novel low Temperature Technique 
Ashwin Sudhakaran1, Allwin Sudhakaran2, E. Siva Senthil3
1Ashwin Sudhakaran*, Department of Physics, Karpagam Academy of Higher Education, Coimbatore (Tamil Nadu), India.
2Allwin Sudhakaran, Department of Physics, Karpagam Academy of Higher Education, Coimbatore, (Tamil Nadu), India.
3E. Siva Senthil, Department of Physics, Karpagam Academy of Higher Education, Coimbatore, (Tamil Nadu), India.
Manuscript received on November 20, 2020. | Revised Manuscript received on November 25, 2021. | Manuscript published on January 30, 2022. | PP: 17-23 | Volume-10 Issue-5, January 2022. | Retrieval Number: 100.1/ijrte.D66281110421 | DOI: 10.35940/ijrte.D6628.0110522
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: 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.
Keywords: Barium Titanate, Nickel ferrite, Nanocomposite, Superparamagnetic, Low Temperature, Magnetic Moment, Bandgap Energy, Coprecipitation, Sol Gel-Auto Combustion, Physical Mixing.