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Title: <span style="font-size:11.0pt;mso-bidi-font-size: 10.0pt;font-family:"Times New Roman","serif";mso-fareast-font-family:"Times New Roman"; mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-GB">Investigations on Mn<sub>x</sub>Zn<sub>1-x</sub>Fe<sub>2</sub>O<sub>4 </sub>(x = 0.1, 0.3 and 0.5) nanoparticles synthesized by sol-gel and co-precipitation methods </span>
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: Mn<sup>2+</sup> substituted Zn ferrite nanoparticles have been synthesized using two different wet methods, sol-gel and co-precipitation. The doping effect of Mn<sup>2+</sup> ion concentration on physical properties like structural and magnetic properties is investigated. The crystallite size and lattice parameter increases with increasing Mn<sup>2+</sup> concentration. EPR study reveals that the line width and <i style="mso-bidi-font-style:normal">g</i>-factor increases with increasing Mn<sup>2+</sup> concentration for co-precipitated particles whereas the reverse trend for sol-gel technique is observed. However, in both the processes the saturation magnetization (<i style="mso-bidi-font-style:normal">M</i><sub>s</sub>) and coercivity (<i style="mso-bidi-font-style:normal">H</i><sub>c</sub>) increase with increasing Mn<sup>2+</sup> concentration. In a comparative study, the nanoparticles synthesized by<sub> </sub>sol-gel are more crystalline in nature as compared to co-precipitated particles.
Description: 385-389
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.18(5) [October 2011]

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