Mössbauer and MFM Investigations of Surface Magnetism in NANOPERM Nanocrystalline Alloys

• Authors: M. Miglierini , M. Pavúk
• Languages of publication: EN

Abstracts

EN

Structurally different surface regions are identified at both sides of the ribbon-shaped ^{57}Fe_{90}Zr_{7}B_{3} NANOPERM alloy. Though paramagnetic in the as-quenched state, the air side shows significant contribution of crystalline bcc-Fe that decreases towards the interior of the ribbon. After annealing at 480 °C, magnetic dipole interactions develop that are associated with enhanced number of ferromagnetic nanograins. Significant increase in the number of nanograins was revealed at the wheel side, while the one at the air side is almost saturated. The observed maze-type magnetic domains exhibit well developed structure with equally wide strips.

Keywords

EN

76.80.+y; 68.37.Rt; 75.60.Ch; 75.70.i; 71.55.Jv

Discipline

• 68.37.Rt: Magnetic force microscopy (MFM)
• 75.60.Ch: Domain walls and domain structure(for magnetic bubbles and vortices, see 75.70.Kw)
• 76.80.+y: Mössbauer effect; other γ-ray spectroscopy(see also 33.45.+x Mössbauer spectra—in atomic and molecular physics; for biophysical applications, see 87.64.kx; for chemical analysis applications, see 82.80.Ej)
• 71.55.Jv: Disordered structures; amorphous and glassy solids

• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 124-125

Dates

published

2014-07

Contributors

author

M. Miglierini

• Institute of Nuclear and Physical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, Ilkovičova 3, 812 19 Bratislava, Slovakia
• Regional Centre of Advanced Technologies and Materials, Palacky University, 17. listopadu 12, 771 46 Olomouc, Czech Republic

author

M. Pavúk

• Institute of Nuclear and Physical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology in Bratislava, Ilkovičova 3, 812 19 Bratislava, Slovakia

References

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Identifiers

DOI

10.12693/APhysPolA.126.124