Imaging of Magnetic Domain Structure in FeSi/Mn_{0.8}Zn_{0.2}Fe₂O₄ Composite using Magnetic Force Microscopy

• Authors: M. Streckova , I. Batko , M. Batkova , R. Bures , M. Faberova , R. Dzunda , H. Hadraba , I. Kubena
• Languages of publication: EN

Abstracts

EN

Soft magnetic composite was prepared by coating the commercial FeSi powder by Mn_{0.8}Zn_{0.2}Fe₂O₄ (MnZn) ferrite, which serves as a potential dielectric phase. MnZn ferrite was prepared by the sol-gel method followed by the auto-self combustion process. The spinel structure of MnZn ferrite was analyzed by X-ray diffraction technique. The composite material was prepared by uniaxial compaction technique and sintered either by conventional or unconventional microwave method. The microwave sintering was applied in order to reduce a grain growth and decrease the overall sintering time. The microstructure of FeSi powder is formed by grains of different diameter. Magnetic force microscopy and scanning electron microscopy were used for an investigation of the correlation between the grain size, grain boundaries and magnetic domains. Magnetic force microscopy visualization of magnetic domains in the prepared soft magnetic composite brings insight into how the magnetically active coating (MnZn ferrite) influences the soft magnetic (FeSi) powder under the influence of the external magnetic field.

Keywords

EN

72.80.Tm; 75.50.Bb; 75.60.-d; 81.20.-n; 81.20.Ev; 81.20.Fw

Discipline

• 75.60.-d: Domain effects, magnetization curves, and hysteresis(for dynamics of domain structures, see 75.78.Fg)
• 81.20.-n: Methods of materials synthesis and materials processing(see also 61.72.U- Doping and impurity implantation; for crystal growth, see 81.10.-h; for film growth, deposition and epitaxy, see 81.15.-z)
• 81.20.Ev: Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation
• 81.20.Fw: Sol-gel processing, precipitation(for reactions in sol-gels, see 82.33.Ln; for sol-gels as disperse system, see 82.70.Gg)
• 75.50.Bb: Fe and its alloys
• 72.80.Tm: Composite materials

• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 4
• Pages: 714-716

Dates

published

2017-04

Contributors

author

M. Streckova

• Institute of Materials Research, Watsonova 47, 040 01 Kosice, Slovakia

author

I. Batko

• Institute of Experimental Physics, SAS, Watsonova 47, 040 01 Kosice, Slovakia

author

M. Batkova

• Institute of Experimental Physics, SAS, Watsonova 47, 040 01 Kosice, Slovakia

author

R. Bures

• Institute of Materials Research, Watsonova 47, 040 01 Kosice, Slovakia

author

M. Faberova

• Institute of Materials Research, Watsonova 47, 040 01 Kosice, Slovakia

author

R. Dzunda

• Institute of Materials Research, Watsonova 47, 040 01 Kosice, Slovakia

author

H. Hadraba

• Institute of Physics of Materials, Academy of Sciences of Czech Republic, Zizkova 22, 616 62 Brno, Czech Republic

author

I. Kubena

• Institute of Physics of Materials, Academy of Sciences of Czech Republic, Zizkova 22, 616 62 Brno, Czech Republic

References

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• [3] P.J. Zaag, M.T. Johnson, A. Noordermeer, P.T. Por, M.Th. Rekveldt, J. Magn. Magn. Mater. 99, L1 (1991), doi: 10.1016/0304-8853(92)90861-H
• [4] P.J. Zaag, P.J. Valk, M.Th. Rekveldt, Appl. Phys. Lett. 69, 2927 (1996), doi: 10.1063/1.117326
• [5] J. Aartsa, I. Abu Shiekah, P.J. van der Zaag, J. Appl. Phys. 85, 7302 (1999), doi: 10.1063/1.369353

Identifiers

DOI

10.12693/APhysPolA.131.714