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Title: Magnetic behaviour of nano-sized and coarse powders of Cd-Ni ferrites synthesized by wet-chemical route
Authors: Rangolia, M K
Chhantbar, M C
Tanna, A R
Modi, K B
Baldha, G J
Joshi, H H
Keywords: Nano particles;Ferrites;Mössbauer spectroscopy
Issue Date: Jan-2008
Publisher: CSIR
Abstract: Nano particles having particle size in the range (80 -100Å) for compositions (x = 0.2, 0.4, 0.6, 0.8) of CdxNi₁₋xFe₂O₄ spinel ferrite system are prepared by chemical co-precipitation route. The structural and magnetic properties have been studied by X-ray diffraction, magnetization, susceptibility and ⁵⁷Fe Mössbauer spectroscopy measurements, before and after high temperature annealing. The magnetic behaviour is explained by invoking the concept of superparamagnetism assuming core-shell structure of the nano-particles.
Page(s): 60-64
ISSN: 0019-5596
Appears in Collections:IJPAP Vol.46(01) [January 2008]

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