Numéro
J. Phys. IV France
Volume 07, Numéro C1, Mars 1997
7th INTERNATIONAL CONFERENCE ON FERRITES
Page(s) C1-201 - C1-202
DOI https://doi.org/10.1051/jp4:1997175
7th INTERNATIONAL CONFERENCE ON FERRITES

J. Phys. IV France 07 (1997) C1-201-C1-202

DOI: 10.1051/jp4:1997175

On the Magnetization Mechanisms in Polycrystalline Hexaferrites

I. Nedkov

Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee blvd, Sofia 1784, Bulgaria


Abstract
An attempt was made to adapt the domain-wall size model to the explanation of magnetization mechanisms in real polycrystalline hard ferrites (SrFe12O19). Some new data concerning the total anisotropy specifically for polycrystals were discussed and its value deduced from natural spin resonance measurements. It was observed that samples with different Heff grain size and shape, can present different hysteresis loops. To explain these differences, we applied the theoretical expressions for the magnetization curve and the hysteresis loop developed earlier.



© EDP Sciences 1997