Magnetic Properties of LaFeCoSi Ring Sample in Low-Frequency Magnetic Field

R. Gozdura, P. Gębarab, K. Chwastekc aLodz University of Technology, Department of Semiconductor and Optoelectronics Devices, Wolczanska 211/215, 90-924 Lodz, Poland bCzęstochowa University of Technology, Institute of Physics, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland cCzęstochowa University of Technology, Faculty of Electrical Engineering, A1. Armii Krajowej 17, 42-200 Częstochowa, Poland

Full Text PDF

The paper presents magnetic studies of a ring sample made of LaFeCoSi bulk alloy. Magnetic behavior of the sample was investigated in the temperature range covering the Curie temperature of 306 K. Influence of frequency, temperature, and magnetic saturation on dynamic hysteresis loops and magnetic power losses was determined. Magnetic losses separation into components showed that the hysteresis loss component was dominant in the frequency range up to about 1 Hz. The decline of power losses caused by the temperature changes followed similarly like magnetic polarization changes close to the Curie point of LaFeCoSi alloy.

DOI:10.12693/APhysPolA.136.689 PACS numbers: 75.30.Sg, 75.60.-d, 75.60.Ej