Imaging of Magnetic Domains and Domain Walls in Spherical Fe-Si Powder Using Magnetic Force Microscopy

• Authors: M. Strečková , M. Baťková , I. Baťko , H. Hadraba , R. Bureš
• Languages of publication: EN

Abstracts

EN

The commercial Fe-Si powder, produced by Högänes Corporation, represents promising soft magnetic material for technological applications. The powder consists of spherical particles with diameter up to 150 μm. Internal microstructure of the powder is formed by grains of diameter of about 30 μm. Each separate grain has a random orientation of the easy magnetization axis and is sufficiently large to split into several magnetic domains. A comparative study of the atomic force microscopy (AFM) topography and the corresponding magnetic force microscopy (MFM) images was employed in order to examine the correlation between the grain size, boundaries of grains and characterization of the magnetic domains, which gives us an important knowledge about possible behavior of particles under the influence of the external magnetic field and further utilization of the spherical Fe-Si particles in electrotechnical industry. The grain size and the crystallographic orientation of grains were analyzed by the electron backscattering diffraction (EBSD) technique.

Keywords

EN

75.50.Bb; 75.60.Ch; 75.70.Kw

Discipline

• 75.60.Ch: Domain walls and domain structure(for magnetic bubbles and vortices, see 75.70.Kw)
• 75.70.Kw: Domain structure (including magnetic bubbles and vortices)(for domain structure in ferroelectricity and antiferroelectricity, see 77.80.Dj)
• 75.50.Bb: Fe and its alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 92-93

Dates

published

2014-07

Contributors

author

M. Strečková

• Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 043 53 Košice, Slovakia

author

M. Baťková

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia

author

I. Baťko

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia

author

H. Hadraba

• CEITEC IPM, Institute of Physics of Materials, Academy of Sciences, Žižkova 22, Brno, Czech Republic

author

R. Bureš

• Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 043 53 Košice, Slovakia

References

• [1] J.A. Bas, J.A. Calero, M.J. Dougan, J. Magn. Magn. Mater. 254-255, 391 (2003), doi: 10.1016/S0304-8853(02)00934-4
• [2] R.M. Bozorth, Ferromagnetism, IEEE Press, 2003
• [3] Högänes datasheet, hittp://hoganas.com/Documents/Somaloy%20Broschyrer%20och%20Wear%20Resist/SMC/Spherical_Fe_Si_powders_with_very_low_losses_for_Soft_magnetic_applications_april_2010.pdf
• [4] H.J. Bunge, Texture Analysis in Materials Science, Butterworth-Heinemann, 1983

Identifiers

DOI

10.12693/APhysPolA.126.92