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IJEMS Vol.18(5) [October 2011] >

Title: Investigations on MnxZn1-xFe2O4 (x = 0.1, 0.3 and 0.5) nanoparticles synthesized by sol-gel and co-precipitation methods
Authors: Chand, Mahesh
Kumar, Arvind
Kumar, Sandeep
Shankar, Ajay
Pant, R P
Keywords: Magnetic materials
EPR spectroscopy
Issue Date: Oct-2011
Publisher: NISCAIR-CSIR, India
Abstract: Mn2+ substituted Zn ferrite nanoparticles have been synthesized using two different wet methods, sol-gel and co-precipitation. The doping effect of Mn2+ ion concentration on physical properties like structural and magnetic properties is investigated. The crystallite size and lattice parameter increases with increasing Mn2+ concentration. EPR study reveals that the line width and g-factor increases with increasing Mn2+ concentration for co-precipitated particles whereas the reverse trend for sol-gel technique is observed. However, in both the processes the saturation magnetization (Ms) and coercivity (Hc) increase with increasing Mn2+ concentration. In a comparative study, the nanoparticles synthesized by sol-gel are more crystalline in nature as compared to co-precipitated particles.
Page(s): 385-389
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Source:IJEMS Vol.18(5) [October 2011]

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