Structural, Magnetic and Mossbauer Studies of
Ni0.8Co0.14Cu0.03Mn0.03Fe2O4 and
Ni0.8Co0.1Cu0.05Mn0.05Fe2O4 Prepared via Low
Temperature Route
P.S. Jadhav1, Vijaya Puri1*, K. K. Patankar2, V.L. Mathe3,
1
Thick and Thin film Device Lab, Department of Physics, Shivaji University Kolhapur(M.S.)- 416004India.
2
Department of Physics, Rajaram College, Kolhapur (M.S.) -416004, India.
3Novel Material Research Lab, Deparment of Physics, University of Pune, Pune (M.S.) India
*
Corresponding author’s e-mail:vijayapuri1@gmail.com, Tel.: +912609230;
jadhavpragati09@gmail.com
Abstract
Solution combustion method was used to synthesize
Ni0.8Co0.14Cu0.03Mn0.03Fe2O4 , Ni0.8Co0.1Cu0.05Mn0.05Fe2O4.
The X-ray diffraction studies show the formation of spinel
nanoferrites. The hysteresis loops obtained from VSM of
both the ferrites confirms ferromagnetic behavior of the
ferrites. The presence of sexset in Mossbauer spectrum
supports the magnetic and magnetomechanical properties
of ferrite.
Keywords: Ni-Co-Cu-Mn ferrite, Solution combustion,
ferrimagnetic behavior, nanoferrites, microstrain, .
measurement were carried out by using P3 strain
indicator and recorder with quarter bridge arrangement.
The saturation magnetostriction and saturation
magnetization were found in good agreement with each
other as both the properties are in direct proportion. The
Mossbauer spectra as shown in fig 1. supports the
observed results in magnetostriction measurement and
hysteresis loop of both the ferrite as it gives the cation
distribution of Fe ions.
Introduction
Ferrites are of great interest from application
point of view because of their excellent electrical and
magnetic properties, which lead to use of these ferrites
in magnetic memory devices, transformers, high
frequency applications and electronic devices like
cellular phones, video cameras, notebook computers in
miniaturized form [1]. The ferrites were prepared
through solution combustion route due to its cost
effectiveness and low energy consumption. The earlier
investigation suggests that the copper doping results in
non linear variation of saturation magnetization and
manganese substitution decreases the coerceive field
and increases the saturation magnetization [2]. The data
on mixed nickel- cobalt- copper – manganese ferrite
system is scant even though the jahn-teller ions like Cu
and Mn are very effective in tailoring the electric,
magnetic and mechanical properties, despite the trace
amount of doping concentration. It is expected to
improve the microstrain in nickel ferrite due to Cu and
Mn doping with proper maintainance of electrical
resistivity.
Results and discussions
X-ray diffraction studies reveals the formation
of cubic spinel structure and the intensity of
characteristic (311) reflection remain unchanged for
both the ferrites. Also the crystallite size remains
unchanged for both the ferrites. The magnetostriction
Fig.1Mossbauer Spectra of Ni0.8Co0.14Cu0.03Mn0.03Fe2O4
(F2) and Ni0.8Co0.1Cu0.05Mn0.05Fe2O4 (F3)
Acknowledgment
One of the authors Dr. Vijaya Puri is grateful to UGC
for the award of UGC Research the financial support.
All the authors also thank DST-PURSE,DST- FIST,
UGC-SAP. PSJ is grateful to Dr.V.R. Reddy, IUC
indore for providing Mossbauer Characterization and
also for valuable discussions.
References
[1] Yen-Pei Fu, Cheng-Hsiung Lin, Chung-Wen Liu
“Preparation
and
magnetic
properties
of
Ni0.25Cu0.25Zn0.5ferrite from microwave-induced
combustion” J. Magn. Magn. Mater 283 (2004) 59–64.
[2] Roumaih Kh.: ‘Magnetic properties of Ni–Cu–Mn
ferrite system’, J. Mol. Struct., 1004,( 2011) 1–7.