Effect of Mechanochemical Treatment on Magnetic Properties of Nanodimensional Magnetite-Type Materials

• Authors: Z. Cherkezova-Zheleva , K. Zaharieva , K. Buchkov , B. Blagoev , I. Mitov
• Languages of publication: EN

Abstracts

EN

The presented study compares magnetic properties of Ni-doped magnetites Ni^{2+}_{0.5}Fe^{2+}_{0.5}Fe^{3+}_{2}O_{4} to magnetite (Fe_3O_4) sample. Physicochemical properties of materials were registered by means of X-ray powder diffraction, Mössbauer spectroscopy, saturation magnetization and physical properties measurement systems. It was obtained that used preparation procedures lead to synthesis of single phase spinel materials with close nanodimensional size about 8-12 nm. Mechanochemically synthesized sample shows better magnetic properties as lower blocking temperature of superparamagnetic state and minimal coercivity in comparison to other studied materials.

Keywords

EN

75.60.-d; 75.75.-c; 82.80.Ej

Discipline

• 82.80.Ej: X-ray, Mössbauer, and other γ-ray spectroscopic analysis methods
• 75.60.-d: Domain effects, magnetization curves, and hysteresis(for dynamics of domain structures, see 75.78.Fg)
• 75.75.-c: Magnetic properties of nanostructures

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 4
• Pages: 912-915

Dates

published

2014-10

Contributors

author

Z. Cherkezova-Zheleva

• Institute of Catalysis, Bulgarian Academy of Sciences, "Acad. G. Bonchev" St., Bld. 11, 1113 Sofia, Bulgaria

author

K. Zaharieva

• Institute of Catalysis, Bulgarian Academy of Sciences, "Acad. G. Bonchev" St., Bld. 11, 1113 Sofia, Bulgaria

author

K. Buchkov

• Institute of Solid State Physics, Bulgarian Academy of Sciences, Tsarigradsko chaussee Blvd., N 72, Sofia 1784, Bulgaria

author

B. Blagoev

• Institute of Electronics, Bulgarian Academy of Sciences, Tsarigradsko chaussee Blvd., N 72, Sofia 1784, Bulgaria

author

I. Mitov

• Institute of Catalysis, Bulgarian Academy of Sciences, "Acad. G. Bonchev" St., Bld. 11, 1113 Sofia, Bulgaria

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Identifiers

DOI

10.12693/APhysPolA.126.912