Synthesis and Properties of Superparamagnetic Y-Fe2O3

  • V.O. Kotsyubynsky Vasyl Stefanyk Precarpathian National University
  • V.V. Moklyak Vasyl Stefanyk Precarpathian National University
  • A.B. Hrubiak Vasyl Stefanyk Precarpathian National University
Keywords: Y-Fe2O3, mossbauer, superparamagnetic

Abstract

Method of nanodispersed g-Fe2O3 synthesis by thermal decomposition of iron citrate is proposed. The investigations of obtained oxides crystal­line and magnetic structures are done. Nanodispersed g-Fe2O3 with sizes of coherent scattering regions about 4-7 nm was is only one phase after gel sintering at 200, 250 and 300оС; the particles of synthesized materials are in a state of magnetic ordering and in superparamagnetic state. The influence of mag­netic dipole interparticles interaction on parameters of Moss­bauer spectra is observed. The phenomenological mo­del of the differences between nanodispersed g-Fe2O3 magnetic micro­structures ob­tained after annealing at different tem­pe­ra­tu­res is presented.

Published
2014-05-05
How to Cite
[1]
KotsyubynskyV., MoklyakV. and HrubiakA. 2014. Synthesis and Properties of Superparamagnetic Y-Fe2O3. Journal of Vasyl Stefanyk Precarpathian National University. 1, 1 (May 2014), 33-39. DOI:https://doi.org/10.15330/jpnu.1.1.33-39.
Section
Articles

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