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Effect of Preparation on Structure and Magnetic Properties of ZnFe₂O₄

Journal of Magnetics, Volume 19, Number 2, 30 Jun 2014, Pages 101-105

Mohammad Niyaifar *

(Department of Physics, Science and Research Branch, Islamic Azad University)

Abstract

In this work, Zinc ferrite nanoparticles have been prepared by various methods, conventional (ZC), mechanochemical processing (ZM) and Sol-Gel (ZS) method, to compare their structural and magnetic properties. The cation distribution obtained from XRD shows the degrees of inversions are 4%, 14.8%, and 16.4% from the normal ZnFe₂O₄structure. Fourier transform infrared spectroscopy (FT-IR) confirms changes in cation distribution of ZnFe2O4 fabricated by sol-gel and mechanochemical processing. The ⁵⁷Fe Mössbauer spectra of the samples were recorded at room temperature. The spectra exhibit a line broadening. The magnetic properties of the samples were studied by vibration sample magnetometer (VSM) at room temperature and the results show that the sample ZM has ferrimagnetic behaviour.

Keywords: zinc ferrite; cation distribution; mossbauer spectroscopy; preparation methods

DOI: http://dx.doi.org/10.4283/JMAG.2014.19.2.101

Full Text: PDF

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