Indian Science Technology and Engineering facilities Map
Supplier Map
Service Map

Publications

Publication Details

Applicant:
Indian Institute of Technology (IIT) Patna 
Author:
R Pandey, L. K Pradhan, S Kumar and M. Kar,  
Corresponding Authors:
Manoranjan Kar 
DOI #:
https://doi.org/10.1016/j.jallcom.2018.05.198 
Title:
“Crystal structure, magnetic and dielectric properties of (1-x) BiFe0.80Ti0.20O3-(x)Co0.5Ni0.5Fe2O4 multiferroic composites 
Journal:
Journal of alloy and compound 
Year:
2018 
Volume:
762 
Page:
668 
Keywords:
CompositeLattice strainMultiferroicSol-gelCrystal structure 
Abstract:
(1-x)BiFe0.80Ti0.20O3–(x)Co0.5Ni0.5Fe2O4 multiferroic composites (x = 0.0, 0.3, 0.5, 0.7 and 1.0) was synthesized by the tartaric acid modified sol-gel method. The Rietveld refinements of all XRD patterns have been carried out to obtain the phase percentages of perovskite BiFe0.80Ti0.20O3 and spinel Co0.5Ni0.5Fe2O4. A change in the lattice parameters of the BFTO and CNFO phase in the composites have been observed, which could be due to strain at the interface of BFTO and CNFO. A change in the peak positions in the Raman spectra of BFTO and CNFO in the composite has been observed and it is well correlated with the XRD results. A significant increase in the magnetization has been observed due to incorporation of Co0.5Ni0.5Fe2O4 phase in the composite. Vegard's law was used to calculate the theoretical value of magnetization for all the composites and compared with the experimental value. Excess value of magnetization observed in the experimental data of composites as compared to the theoretically calculated value and, explained on the basis of interfacial strain effect. An enhancement in the dielectric properties has been observed in the composite system. A correlation between the structure, magnetic and dielectric properties has been reported by assuming strain at the interface of BFTO and CNFO phase. 
Entered by:
Venkata Dantham on 2020-08-02 
 
I-Mitra(आई-मित्र) Welcomes You..
THE VISION
THE MISSION
ABOUT I-STEM
It has always been the basic tenet of the Government of India, in generously funding R&D efforts at academic institutions over the years, that facilities established through such support be made available to those needing them and qualified to make use of them for their own research work
read more >>

However, this was never easy or straightforward for, among other reasons, there was no ready source of information of what facility was available and where. Thanks to the Web, it is much easier today to have a national and regional “inventory of resources”, so as to match users with the resources they need, and to do all this in an efficient and transparent manner.

This can lead to a leap in R&D productivity and greatly enhance the effectiveness of public investment. This is the motivation behind I-STEM.
read less <<
Visitor Hit Counter
Hosted at Indian Institute of Science
Copyright © 2020 I-STEM. All rights reserved.
Audited by: STQC Bengaluru.