Magnetic properties of nanocomposites based on opal matrices with embedded ferrite-spinel nanoparticles

Magnetic properties of nanocomposites based on opal matrices with ferrite-spinel nanoparticles embedded have been investigated in temperature range from 2 to 300K. The magnetization curves and hysteresis loops as well as the temperature dependence of magnetic moment and the temperature and frequency...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2016-02, Vol.399, p.216-220
Main Authors: Rinkevich, A.B., Korolev, A.V., Samoylovich, M.I., Klescheva, S.M., Perov, D.V.
Format: Article
Language:English
Subjects:
Blocking temperature
Ferrite-spinel nanoparticles
Hysteresis loops
Magnetic permeability
Magnetic properties
Magnetism
Nanocomposites
Nanoparticles
Superparamagnetism
Temperature dependence
X-rays
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Summary:Magnetic properties of nanocomposites based on opal matrices with ferrite-spinel nanoparticles embedded have been investigated in temperature range from 2 to 300K. The magnetization curves and hysteresis loops as well as the temperature dependence of magnetic moment and the temperature and frequency dependences of AC susceptibility have been measured. The results of magnetic measurements are compared to X-ray analysis and electron microscopy investigations. •Magnetic properties of nanocomposites crystals have been studied.•The crystals are based on opal matrices with nanoparticles of ferrite-spinels.•The magnetic phase is ordered ferrimagnetically and superparamagnetically partially.•The coercive field of the crystals sharply increases at cryogenic temperatures.•The hysteresis loop has a place even at low times of impregnation.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2015.09.068