Probing the Transition from Nano- to Bulk-Like Behaviour in ZnFe₂O₄ Nanoparticles

Abstract:

The evolution of the magnetism as a function of the particle size is reported here for the ZnFe2O4 nanoparticles. A combination of neutron powder diffraction down to 1.5 K and magnetization measurements suggest that nanoparticles of sizes greater than about 100 nm exhibit bulk like behavior. The size dependence on magnetism can be explained by the rearrangement of the cations on the interstitial sites of the spinel cell.

• Periodical: Materials Science Forum (Volume 674)
• Pages: 207-211
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.674.207
• Online since: February 2011
• Authors: Evagelia G. Moshopoulou, Olivier Isnard, Marija Milanovic, Vladimir V. Srdic
• Keywords: Crystal Structure, Disorder, Ferrite, Magnetic Property, Nanoparticle, Neutron Diffraction, ZnFe₂O₄

References

[1] E. G. Moshopoulou, Ph.D. Thesis University Joseph Fourier, (1995).

[2] M. Maletin, E. G. Moshopoulou, V. V. Srdic: J. European Cer. Soci. Vol. 27 (2007), p.4391.

[3] M. Maletin, E. G. Moshopoulou, V. V. Srdic: Solid State Phenomena Vol. 128, (2007), p.101.

[4] M. Maletin, E. G. Moshopoulou, Vladimir V. Srdic: Physica Status Solidi A Vol. 205 no. 8, (2008), p.1831.