Structure and magnetic properties of ZnxFe3–xO4 nanoparticles obtained by mechanochemical synthesis

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Abstract

A scalable method for the synthesis of zinc ferrites ZnxFe3–xO4 (with a doping degree of x = 0; 0.125; 0.25; 0.5; 1) by controlled oxidation of an iron and zinc mixture during mechanochemical synthesis is proposed. Comprehensive studies of the processes occurring during mechanochemical synthesis were carried out using X-ray diffraction analysis, Mössbauer spectroscopy and measurement of magnetic properties. It was shown that zinc ions in the synthesized ferrites occupy both tetrahedral and octahedral positions, which leads to a decrease in the saturation magnetization to 44 Am2/kg with an increase in the doping degree to x = 1. An increase in the doping degree leads to a monotonic decrease in the coercivity to 40.3 Oe, which can be used to obtain materials with desired properties.

About the authors

V. A Mikheev

National University of Science and Technology MISIS

Moscow, Russian Federation

P. I Nikolenko

National University of Science and Technology MISIS

Moscow, Russian Federation

T. R Nizamov

National University of Science and Technology MISIS

Moscow, Russian Federation

A. I Novikov

National University of Science and Technology MISIS

Moscow, Russian Federation

A. S Lileev

National University of Science and Technology MISIS

Moscow, Russian Federation

I. V Shchetinin

National University of Science and Technology MISIS

Email: ingvar@misis.ru
Moscow, Russian Federation

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