On Magnetization Reversal in Hard Magnetic Sm--Fe--N Permanent Magnets |
| P. Pawlik, J.J. Wysłocki Institute of Physics, Technical University of Częstochowa, al. Armii Krajowej 19, 42-200 Częstochowa, Poland and M. Baran Institute of Physics, Polish Academy of Sciences al. Lotników 32/46, 02-668 Warszawa, Poland |
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| Received: August 6, 2001 |
| The investigations were carried out on Sm--Fe--N permanent magnets produced by reactive diffusion method. The magnets consist of hard magnetic phases: Sm2Fe17N0.86 and SmFe5 and soft magnetic α-Fe phase. From the comparison of experimentally determined angular dependence of coercive field with appropriate theoretical predictions and from the dependence of coercive field on the external magnetic field determined from the minor hysteresis loops, it was stated that magnetization reversal process in Sm--Fe--N magnets is controlled by the nucleation of reversed domains process. |
| DOI: 10.12693/APhysPolA.100.905 PACS numbers: 75.50.--y, 75.60.--d |