Department of Physics and Meteorology, Indian
Institute of Technology Kharagpur, 721302, West Bengal, India
Adv. Mater. Lett., 2014, 5 (2), pp 84-88
DOI: 10.5185/amlett.2013.fdm.36
Publication Date (Web): Jan 27, 2014
Copyright © IAAM-VBRI Press
E-mail: tnath@phy.iitkgp.ernet.in
Single phase Bismuth ferrite (BiFeO3, BFO) nanoparticles (particle size ~ 50-100 nm) were synthesized by a novel chemical sol-gel technique. The detailed microstructural analysis has been performed through HRXRD, HRTEM and FESEM techniques. The nanoparticles are found to crystallize with distorted rhombohedral structure having R3c space group. The dielectric constant and tan δ loss are found to vary monotonically with temperature measured at different frequency ranging from 1 kHz to 1 MHz. The M (H) hysteresis behavior at 5 K reveals weak ferromagnetic nature of the BiFeO3 nanoparticles having coercivity (Hc) ~ 720 Oe and magnetization (Ms) ~ 1 emu/g at 5 T from SQUID measurements. The multiferroic character of BFO nanoparticles is confirmed through magnetoelectric response. The typical value of magnetodielectric response is observed to be 0.4% at 4300 Oe at room temperature at a frequency of 1 kHz. All the results suggest that the BFO nanoparticles are technologically very promising as far as magnetoelectric properties are concerned.
Dielectric behaviour, ferroelectricity, weak ferromagnetism, magnetocapacitance.
Adaptations and Lessons from COVID-19: A Perspective on How some Industries will be Impacted
Background and Strategies for Identification and Design of Materials for Thermochemical Energy Storage and Conversion
Phosphorus Gasification during the Reduction of basic Oxygen Furnace Slags in a Novel Reactor Concept
Concrete Electrical Resistivity at Varied Water, Chloride Contents and Porosity – Experiment, Modelling & Application
Water Purifying Bio-concrete
Local Fluctuations of Transformation to “Amorphous Diamond” from C60 Fullerenes and Neutron-irradiated Graphite under Shock-compression
Coulomb Drag of Electron-Electron Interactions in GaAs Bilayer with a Non Homogeneous Dielectric Background
Effect of Nd-concentration in Nd(2-x)FexO3 System on the Crystal Structure and Microwave Absorption Characteristics
Experimental Study on Strength Characteristics of Chopped Glass Fiber (CGF) Cement-Mortar Composites
Researcher of the Year 2020: Professor Herbert Gleiter, Germany
Self-sealing Polymeric Materials: Mechanism and Applications
Development of Ruthenium Complex Based Sensitizers, Organic Based Sensitizers, and Co-sensitization System for Dye-sensitized Solar Cells
Characterization of a New Copper Paste for Printed Electronics
Co-Ni Nanowires Arrays with Tunable Properties Obtained by Template Synthesis
Dispersion of Multi-Walled Carbon Nanotubes Using Polyvinylpyrrolidone for Application in Cement - Based Composites to Enhance Electrical Conductivity
Towards a Physics Based Model of Magnetic Barkhausen Noise in Steel
Sustainable Concept and Economic Evaluation of a Solar-Powered Hydrogen Generation Unit
Macrocell Corrosion and its Countermeasure for Reinforced Concrete after Patch Repair
Modelling the Height of Hydrothermally Synthesized Titanium Dioxide Nanostructures
Cellular SiC/Iron Alloy Composite
Conceptual Design of the CSP Lead Demonstrator SOLEAD
Numerical and Experimental Analyses of Equal Channel Angular Processing of Pure Aluminum
Copyright ©2010-2020 VBRI Press
Full Article