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Structural and Magnetic study of Al3+ doped Ni0.75Zn0.25Fe2-xAlxO4 nanoferrites

Published online by Cambridge University Press:  12 September 2013

L. Wang ,
B. K. Rai  and
S. R. Mishra
L. Wang
Affiliation:
Department of Physics, The University of Memphis, Memphis, TN 38152
B. K. Rai
Affiliation:
Department of Physics, The University of Memphis, Memphis, TN 38152
S. R. Mishra
Affiliation:
Department of Physics, The University of Memphis, Memphis, TN 38152
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Abstract

Nanostructured Al3+ doped Ni0.75Zn0.25Fe2-xAlxO4 (x = 0.0,0.2,0.4,0.6,0.8, and 1.0) ferrites were synthesized via wet chemical method. X-ray diffraction, transmission electron microscopy, and magnetization measurements have been used to investigate the structural and magnetic properties of spinel ferrites calcined at 950 °C .With the doping of Al3+, the particle size of Ni0.75Zn0.25Fe2-xAlxO4 first increased to 47 nm at x = 0.4 and then decreased down to 37 nm at x = 1. Saturation magnetization decreased linearly with Al3+ due to magnetic dilution. The coercive field showed an inverse dependence on the particle size of ferrites.

Keywords

ferromagneticgrain sizemagnetic properties

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Type
Articles
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MRS Online Proceedings Library (OPL) , Volume 1506: Symposium Y – Combustion Synthesis of Functional Nanomaterials , 2013 , mrsf12-1506-y03-16
Copyright
Copyright © Materials Research Society 2013 

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