Study of the Magnetization Processes in Amorphous and Nanocrystalline FINEMET by the Numerical Decomposition of the Hysteresis Loops

• Authors: J. Kováč , L. Novák , L. Varga
• Languages of publication: EN

Abstracts

EN

The magnetization processes in amorphous and nanocrystalline FINEMET ribbons were studied by the numerical decomposition of the quasi-static hysteresis loop to the contributions of the domain wall movement, the domain rotations, and the domain wall annihilation and nucleation processes following the hyperbolic T(x) model of hysteresis. The hysteresis data measured during decrease of the excitation magnetic field were used for the separation of these processes. The significant differences in behavior of these two materials were found. In amorphous state the domain rotations component dominates whereas in nanocrystalline state the domain wall movement component prevails. These differences are reflected in the anisotropy field distributions as well.

Keywords

EN

75.60.-d; 75.60.Ej

Discipline

• 75.60.-d: Domain effects, magnetization curves, and hysteresis(for dynamics of domain structures, see 75.78.Fg)
• 75.60.Ej: Magnetization curves, hysteresis, Barkhausen and related effects(for hysteresis in ferroelectricity, see 77.80.Dj)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 4
• Pages: 732-734

Dates

published

2017-04

Contributors

author

J. Kováč

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

author

L. Novák

• Department of Physics, Faculty of Electrical Engineering and Informatics, Technical University of Košice, Letná 9, 042 00 Košice, Slovakia

author

L. Varga

• Wigner Center for Physics, Institute for Solid State Physics and Optics, H-1525 Budapest, P.O. Box 49, Hungary

References

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Identifiers

DOI

10.12693/APhysPolA.131.732