Magnetic Susceptibility Disaccommodation and Mössbauer Effect in Microcrystalline Fe-Si Ribbons

• Authors: W. Ciurzyńska
• Languages of publication: EN

Abstracts

EN

The magnetic susceptibility disaccommodation of the microcrystalline Fe-xSi (x=3, 5, 6.5, and 7.2 wt%) ribbons in the as-quenched state and after annealing at 1370 K for 1 h was investigated in the temperature range from 220 to 410 K. Simultaneously, the microstructure of those samples was studied using the Mössbauer spectroscopy. It is found that the isochronal disaccommodation curves may be decomposed into five elementary processes. Taking into account the results obtained from the Mössbauer spectra analysis, the relaxational process with activation energy equal to 0.84 eV may be considered as the Snoek relaxation. However, the relaxational processes of higher activation energy seem to be connected with jumps of C atoms in the vicinity of Fe atoms surrounded by 1, 2, 3, and 4 silicon atoms.

Keywords

EN

75.60.Lr; 76.80.+y

Discipline

• 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)
• 75.60.Lr: Magnetic aftereffects

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 97
• Issue: 4
• Pages: 719-728

Dates

published

2000-04

received

1999-11-30

Contributors

author

W. Ciurzyńska

• Institute of Physics, Technical University of Czestochowa, Al. Armii Krajowej 19, 42-200 Czestochowa, Poland

Identifiers

DOI

10.12693/APhysPolA.97.719