Indian Science Technology and Engineering facilities Map
Supplier Map
Service Map

Publications

Publication Details

Applicant:
Indian Institute of Technology (IIT) Patna 
Author:
Rajnish Kumar, Rakesh Kr. Singh, Mukesh Kumar Zope and M. Kar  
Corresponding Authors:
Manoranjan Kar 
DOI #:
https://doi.org/10.1016/j.mseb.2017.03.012 
Title:
Tuning of magnetic property by lattice strain in lead substituted cobalt ferrite 
Journal:
Materials Science and Engineering B  
Year:
2017 
Volume:
220 
Page:
73-81 
Keywords:
Spinel ferrite, Rietveld, Yafet-Kittel, Magnetocrystalline anisotropy 
Abstract:
Co1−xPbxFe2O4 (x = 00–0.15) have been synthesized using citric acid modified sol-gel method. Samples for x ≤ 0.02 have been ball milled to reduce the particle size. Hence, all the materials under the study are in almost equal crystallite size (∼15 nm). The phase purity and structural study have been carried out using X-ray powder diffraction (XRD) technique. The Rietveld refinement of XRD patterns reveals the increasing lattice parameter with the lead (Pb) concentration. Detailed analysis of the Raman spectroscopy data supports the XRD pattern analysis results. Magnetic hysteresis loop measurements have been performed using Vibrating Sample Magnetometer (VSM) at room temperature over field range of ±20 kOe. Magnetocrystalline anisotropy constant was calculated using Law of Approach (LA) to saturation, which shows increasing behavior till 2% Pb concentration. The large difference in experimental and theoretical saturation magnetic moment per formula unit shows existence of three sublattice model suggested by Yafet-Kittel. 
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.