Record Details

A study of nanosized magnesium ferrite particles with high magnetic moment

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title A study of nanosized magnesium ferrite particles with high magnetic moment
 
Creator SUMANGALA, TP
MAHENDER, C
VENKATARAMANI, N
PRASAD, S
 
Subject CATION DISTRIBUTION
SOL-GEL
NANOPARTICLES
MGFE2O4
BEHAVIOR
ROUTE
FTIR
Magnetic materials
Nanostructures
Sol-gel combustion synthesis
X-ray diffraction
Magnetisation coercivity
Non-saturation
Cation distribution
 
Description Nano-sized magnesium ferrite particles were prepared by sol gel combustion synthesis and were either furnace cooled or quenched after calcining at various temperatures ranging from 300 to 800 degrees C. A magnetisation value of 61 emu/g was obtained at 5 K for sample calcined at 800 degrees C and quenched in liquid nitrogen temperature. This is one of the highest reported values of magnetisation obtained from quenching at such a lower temperature. An estimate of the number of Fe3+ ions on A and B sites was made after applying Neel Model on the magnetisation values measured at 5 K. It was estimated that Fe3+ ions segregates out from both sites disproportionately so as to cause a net decrease in the overall moment. The resultant cation distribution is found to be consistent with the coercivity data. (C) 2015 Elsevier B.V. All rights reserved
 
Publisher ELSEVIER SCIENCE BV
 
Date 2016-01-14T14:29:35Z
2016-01-14T14:29:35Z
2015
 
Type Article
 
Identifier JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 382,225-232
0304-8853
1873-4766
http://dx.doi.org/10.1016/j.jmmm.2015.01.056
http://dspace.library.iitb.ac.in/jspui/handle/100/17729
 
Language en