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Synthesis and characterization of some ferrite nanoparticles

B. PARVATHEESWARA RAO1, O. F. CALTUN2,*

Affiliation

  1. Department of Physics, Andhra University, Visakhapatnam 530 003, India
  2. Faculty of Physics, A.I. Cuza University, Iasi, 700506 Romania

Abstract

Three mixed ferrite systems, namely Ni0.65 Zn0.375 Inx Ti0.025 Fe1.95-x O4 (Ni-Zn-In-Ti), Ni0.65 Zn0.35 Fe2 O4 (Ni-Zn) and Mn0.75 Zn0.18 Fe2.07 O4 (Mn-Zn) have been chosen for the present study to compare their structural and magnetic characterizations under different ferrite nano preparation routes. Ni-Zn-In-Ti ferrite nanoparticles have been prepared using first by a classical ceramic method to result in sintered ferrite specs and then by mechanosynthesis approach of ball milling to have ultra fine ferrite particles. Ni-Zn and Mn-Zn ferrite nanoparticles were prepared by a soft chemical approach of coprecipitation and then heat treated the particles at different annealing temperatures for improved crystallinity. The samples were then subjected to x-ray diffraction technique, vibrating sample magnetometry and ferromagnetic resonance (FMR) spectrometry and the results are compared and discussed in the light of the existing understanding..

Keywords

Ni-Zn ferrites, Nanoparticles, XRD, Ferromagnetic resonance spectroscopy.

Submitted at: March 15, 2006
Accepted at: May 18, 2006

Citation

B. PARVATHEESWARA RAO, O. F. CALTUN, Synthesis and characterization of some ferrite nanoparticles, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 3, pp. 991-994 (2006)