Minor Loop Scaling Rules for Finemet Type Soft Magnetic Cores

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

Abstracts

EN

The validity of the Steinmetz law (P=K B^{n}) has been analyzed using the tanh model, by splitting the minor loops in three or two components, corresponding to different magnetization processes at different excitation levels. It is shown that the original Steinmetz law with the exponent n=1.6 is valid only at and above the coercive field, for intermediate and high induction values, where all the three magnetization processes are present. At small magnetization levels the exponent is about 3, much higher than the original proposed value.

Keywords

EN

75.50.Bb; 75.50.Kj; 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)
• 75.50.Kj: Amorphous and quasicrystalline magnetic materials
• 75.50.Bb: Fe and its alloys

• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 156-157

Dates

published

2014-07

Contributors

author

L. Varga

• Wigner Research Center for Physics, Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, 1525 Budapest, P.O.B.49, Hungary

author

J. Kováč

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

References

• [1] C.P. Steinmetz, The Electrician January 2, 261 (1891)
• [2] C.P. Steinmetz, Proceedings of the IEEE 72, 196 (1984), reprinted from American Institute of Electrical Engineers Transactions 9, 3 (1892), doi: 10.1109/PROC.1984.12841
• [3] F.J.G. Landgraf, M. Emura, M.F. de Campos, J. Magn. Magn. Mater. 320, e531 (2008), doi: 10.1016/j.jmmm.2008.04.011
• [4] S. Takahashi and L. Zhang, J. Phys.Soc. Japan 73, 1567 (2004), doi: 10.1143/JPSJ.73.1567
• [5] S. Takahashi, S. Kobayashi and T. Shishido, J. Phys.: Condens.Matter 20, 035217 (2008), doi: 10.1088/0953-8984/20/03/035217
• [6] R.M. Bozorth, Ferromagnetism, Van Nostrand, N.Y., 1951, p. 782
• [7] L.K. Varga, Gy. Kovács and J. Takács, J. Magn. Magn. Mater. 320, L26 (2008), doi: 10.1016/j.jmmm.2007.06.008

Identifiers

DOI

10.12693/APhysPolA.126.156