Investigation of chromium doping effect on the structural and magnetic properties of MnFe2-xCrxO4 ferrite nanoparticles

Document Type : Full length research Paper

Authors

Assistant Professor of University

Abstract

In this investigation, the manganese ferrite nanoparticles MnFe2-xCrxO4) x=0, 0.25, 0.5, 0.75) were prepared. Structural properties of samples were analyzed using X- ray diffraction and field emission scanning electron microscopy (FESEM). By evaluating XRD results, using Scherrer's equation, the size of the crystallites was obtained about 4 nm. FESEM images indicated agglomerated nanoparticles for samples. The magnetic properties have been characterized by using AC susceptometer and vibrating sample magnetometer (VSM). Given the results of VSM, the study found that the magnetization of nanoparticles decreased with increasing Cr doping. AC magnetic susceptibility of samples shows, the response of samples is dependent on the applied frequency. Results showed that the prepared samples at low temperatures indicate super spin–glass behavior with strong interaction between nanoparticles. 

Keywords

References

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Journal of Research on Many-body Systems
Volume 6, Issue 12
December 2017
Pages 1-9

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History

  • Receive Date: 21 October 2015
  • Revise Date: 08 February 2016
  • Accept Date: 29 February 2016

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